SACRAMENTO, Calif. (AP) -- A California Department of Transportation engineering team has uncovered a broader range of problems with the safety testing of roadways and bridges in California, including tests of work performed on the eastern span of the San Francisco-Oakland Bay Bridge, the Sacramento Bee reported Sunday.

After engineers in December started reviewing records of the tests, they found doctored data and other suspicious information, the newspaper said.

Engineers were looking into a technician blamed for falsifying tests on other projects but found problems that extended beyond that former employee. The information also called into question testing of the new Bay Bridge and three other key Bay Area spans.

The assessment follows assertions by department officials that their tests were valid and that the Bay Bridge is safe.
It identified at least 23 cases of suspect radiation test data used to approve the reinforced concrete foundations of the Bay Bridge, Benicia-Martinez Bridge, Dumbarton Bridge and Richmond-San Rafael Bridge, according to state and federal reports and emails.

The engineers said the records for those spans should be analyzed further. Those 23 cases are among 1,000 files of Caltrans roadway and bridge tests deemed questionable.

Caltrans launched its review of data after the Bee's investigation last fall found that a technician who conducted tests to determine the structural integrity of the foundation of the main tower of the new Bay Bridge had falsified tests on other projects.

In an email response to written questions from the Bee, Caltrans spokesman Matt Rocco said no bridges or other structures "have been found to be unsound thus far in our review." Rocco said "the Bay Bridge is safe."

Still, according to the Bee, the Federal Highway Administration criticized Caltrans for waiting several years to launch a review of the testing program.

The Bee obtained federal and state reports and emails from the administration through a Freedom of Information Act request.

Caltrans Director Malcolm Dougherty said in a statement issued Sunday that the data cited by the newspaper were taken from a preliminary, draft work product.

"It is irresponsible and premature to draw any conclusions from the data at this time," he said, adding that the department intended to release its findings to the public and its federal partners when the audit is complete.

In his first public comments about the testing controversy last week, Gov. Jerry Brown dismissed concerns about the Bay Bridge.

State Sen. Mark DeSaulnier, D-Concord, who chairs the Senate transportation committee, has scheduled a public hearing Aug. 14 to address Caltrans testing issues.

"I'm determined, as is the committee, to get to the truth. These are huge investments in public safety, and if they are not making the public safer, I want to know why. And we are going to find out," DeSaulnier told the Bee. "We will be as relentless and tenacious as required."

The hearings will focus on the foundation of the main tower of the new Bay Bridge. That foundation comprises 13 reinforced concrete piles that reach into bedrock under the bay.

Because of questions raised about the radiation and sonic testing of the piles, some independent experts have suggested further analysis should be conducted.

Caltrans officials have repeatedly said that the 13 piles of the tower foundation were tested properly and that the bridge is safe.

Related on HuffPost:

Loading Slideshow...
  • View from the Walk

    <a href="http://www.huffingtonpost.com/social/Traci_Brodnax"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/22603236/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Traci_Brodnax">Traci Brodnax</a>:<br />Snapped this photo during my first walk ever across the Golden Gate Bridge in February 2009.

  • The Mighty Golden

    <a href="http://www.huffingtonpost.com/social/Jennifer_Frimml"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/google_profile_img/3200100.png" /></a><a href="http://www.huffingtonpost.com/social/Jennifer_Frimml">Jennifer Frimml</a>:<br />Where ocean meets the bay.

  • Golden Gate Bridge from the deck of the Star Princess cruise ship

    <a href="http://www.huffingtonpost.com/social/AgentAkit"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3200115.png" /></a><a href="http://www.huffingtonpost.com/social/AgentAkit">AgentAkit</a>:<br />Taken in April 2009 on a round-trip cruise to Mexico from San Francisco.

  • From Cavallo Point

    <a href="http://www.huffingtonpost.com/social/Andrea_Scallon"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/google_profile_img/3200127.png" /></a><a href="http://www.huffingtonpost.com/social/Andrea_Scallon">Andrea Scallon</a>:<br />

  • An alternative view of the bridge...

    <a href="http://www.huffingtonpost.com/social/Rambosf"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/Rambosf">Rambosf</a>:<br />This was taken today (May 7, 2012) at Baker/Marshall Beach.

  • This is Home

    <a href="http://www.huffingtonpost.com/social/laurelxxi"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/laurelxxi">laurelxxi</a>:<br />Nothing's better than a clear sky and going over the Golden Gate Bridge!

  • Golden Gate Bridge

    <a href="http://www.huffingtonpost.com/social/Genia_Roper"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/169000074/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Genia_Roper">Genia Roper</a>:<br />

  • Golden Gate Bridge

    <a href="http://www.huffingtonpost.com/social/Leandro_Pimenta"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/Leandro_Pimenta">Leandro Pimenta</a>:<br />

  • Bird Staring at Bridge

    <a href="http://www.huffingtonpost.com/social/anacaren08"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/anacaren08">anacaren08</a>:<br />This bird seems to enjoy the view of the Golden Gate Bridge too.

  • Clearing storm over the Gate

    <a href="http://www.huffingtonpost.com/social/shakedown1970"><img style="float:left;padding-right:6px !important;" src="http://i.huffpost.com/profiles/425071-tiny.png?20091001211236" /></a><a href="http://www.huffingtonpost.com/social/shakedown1970">shakedown1970</a>:<br />

  • Golden Gate Bridge from on the Bay

    <a href="http://www.huffingtonpost.com/social/shakedown1970"><img style="float:left;padding-right:6px !important;" src="http://i.huffpost.com/profiles/425071-tiny.png?20091001211236" /></a><a href="http://www.huffingtonpost.com/social/shakedown1970">shakedown1970</a>:<br />Golden Gate Bridge from on the Bay

  • Golden Gate Bridge from Horseshoe Bay Sausalito.

    <a href="http://www.huffingtonpost.com/social/Greg_Linhares"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1485310226/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Greg_Linhares">Greg Linhares</a>:<br />Saturday, May 5, 2012.

  • Sun Gate - From Grizzly Peak Oakland Hills

    <a href="http://www.huffingtonpost.com/social/Greg_Linhares"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1485310226/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Greg_Linhares">Greg Linhares</a>:<br />

  • Golden Gate Sunset from Grizzly Peak

    <a href="http://www.huffingtonpost.com/social/Greg_Linhares"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1485310226/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Greg_Linhares">Greg Linhares</a>:<br />

  • Golden Gate

    <a href="http://www.huffingtonpost.com/social/Blasphemous_Girl"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/Blasphemous_Girl">Blasphemous Girl</a>:<br />I took this while on a cruise around the Bay

  • Nicolas Ewing at GoldenGate Bridge, 1st visit!

    <a href="http://www.huffingtonpost.com/social/lilliewinghere"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/lilliewinghere">lilliewinghere</a>:<br />Nic and The Golden Gate Bridge, A Majestic combination!

  • Golden Gate Bridge

    <a href="http://www.huffingtonpost.com/social/mrbblack"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/588578598/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/mrbblack">mrbblack</a>:<br />Structure

  • Surfing Fort Point

    <a href="http://www.huffingtonpost.com/social/newmanfilm"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/6704711/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/newmanfilm">newmanfilm</a>:<br />Surfers enjoying the waves at Fort Point

  • Golden Gate

    <a href="http://www.huffingtonpost.com/social/whube"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/whube">whube</a>:<br />Golden Gate

  • Across the Golden Gate

    <a href="http://www.huffingtonpost.com/social/Melissa_Lake"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/google_profile_img/2492525.png" /></a><a href="http://www.huffingtonpost.com/social/Melissa_Lake">Melissa Lake</a>:<br />This picture was taken through the windshield of my car as we drove across the Golden Gate Bridge.

  • Golden Gate Bridge - South Tower

    <a href="http://www.huffingtonpost.com/social/Jack_Kulp"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/Jack_Kulp">Jack Kulp</a>:<br />I got the chance to go to the very top of the GG Bridge about thirty years ago. And, yes. That's my foot

  • IPAD Pict

    <a href="http://www.huffingtonpost.com/social/Jaime_Echeverri"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/677114342/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Jaime_Echeverri">Jaime Echeverri</a>:<br />

  • Nikki at GGB

    <a href="http://www.huffingtonpost.com/social/ckim"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/ckim">ckim</a>:<br />Nikki at GGB

  • Golden Landmark

    <a href="http://www.huffingtonpost.com/social/bpope8"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/bpope8">bpope8</a>:<br />A light fog rolls in through the city on a beautiful February evening in 2012.

  • GGB

    <a href="http://www.huffingtonpost.com/social/Hector_Machuca"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1391294170/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Hector_Machuca">Hector Machuca</a>:<br />

  • Bad Moon Rising

    <a href="http://www.huffingtonpost.com/social/bpope8"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/bpope8">bpope8</a>:<br />On May 5th 2012 the Moon rised up over the City of San Francisco and lit up the sky and waters beautifully. The Super Moon they called it was truly remarkable.

  • Golden Trails

    <a href="http://www.huffingtonpost.com/social/bpope8"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/bpope8">bpope8</a>:<br />A look at the famous Golden Gate Bridge at night with the light trails from the vehicles traveling north & south bound. The light combined with the candy apple red bridge sparked Golden as ever.

  • Underneath the Cobalt Sky

    <a href="http://www.huffingtonpost.com/social/bpope8"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/bpope8">bpope8</a>:<br />This was taken during the "Blue Hour" and it provided a cobalt blue sky which contrasted nicely with The Golden Gate Bridge and the San Francisco Bay.

  • Up to the sky

    <a href="http://www.huffingtonpost.com/social/jacivico"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3206576.png" /></a><a href="http://www.huffingtonpost.com/social/jacivico">jacivico</a>:<br />Cellphone photography + fisheye toy lens

  • Golden Gate Silhouette

    <a href="http://www.huffingtonpost.com/social/Randall_Paetzold"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/google_profile_img/3206508.png" /></a><a href="http://www.huffingtonpost.com/social/Randall_Paetzold">Randall Paetzold</a>:<br />While driving home from an all-day family outing in Tomales Bay. Only moments later after merging on to the 80 south and cleared the trees from Cesar Chaves Park; we saw this (see photo). I broke out my Nikon 5000, slapped on my Nikkor 70-300mm lens, calmed my breathing, focused and shot. All the while, sitting as one of the seven backseat passengers in our VW van zipping through traffic. You'd never know by the shot. Ha! R!

  • Golden Gate Bridge

    <a href="http://www.huffingtonpost.com/social/Dutt561"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/yahoo_profile_img/3206938.png" /></a><a href="http://www.huffingtonpost.com/social/Dutt561">Dutt561</a>:<br />The Golden Gate Bridge, with the Golden Gate National Recreational Area in the background

  • Under the Gate

    <a href="http://www.huffingtonpost.com/social/Agata_Kaczmarska"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/693449965/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Agata_Kaczmarska">Agata Kaczmarska</a>:<br />

  • Come Away With Me...to the moon

    <a href="http://www.huffingtonpost.com/social/bpope8"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/bpope8">bpope8</a>:<br />The Super Moon with it's orange color shined bright over The City and through the iron rods of the Golden Gate Bridge on May 5th 2012.

  • It's a nice view if you can get it...

    <a href="http://www.huffingtonpost.com/social/offsite2000"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/offsite2000">offsite2000</a>:<br />View from Angel Island Ferry

  • the power of movement and angle

    <a href="http://www.huffingtonpost.com/social/paulasilver"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/paulasilver">paulasilver</a>:<br />i snapped this out of the car window over winter break with my family. i really love the fluidity of it.

  • The Bridge

    <a href="http://www.huffingtonpost.com/social/"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/"></a>:<br />

  • Surfing the Golden Gate

    <a href="http://www.huffingtonpost.com/social/rjjacks"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/rjjacks">rjjacks</a>:<br />Surfing the Golden Gate

  • A foggy day at the Golden Gate

    <a href="http://www.huffingtonpost.com/social/rjjacks"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/rjjacks">rjjacks</a>:<br />A foggy day at the Golden Gate

  • Golden Gate Bridge

    <a href="http://www.huffingtonpost.com/social/stidf"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/stidf">stidf</a>:<br />

  • Golden Gate Tower

    <a href="http://www.huffingtonpost.com/social/1dark1"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/1dark1">1dark1</a>:<br />