US Bridges

Girder and Floorbeam System bridges in Idaho

Main girders along the bridge with transverse floorbeams carrying the deck, typical of larger steel bridges. Idaho has 50 of them, 1.1% of its bridges. Nationally this type accounts for 0.8% of all bridges.Compare states for this type.

Girder and Floorbeam System bridges
50
Poor condition
10%
5 bridges
Average age
54 yrs
Combined length
2 mi

Busiest girder and floorbeam system bridges in Idaho

Top 50 by daily traffic
BridgeCountyLocationBuiltTypeLengthDaily trafficCondition
I 84 Ebl over Rd;uprr;snake R;glenns F
No. 000000000015965
Elmore County1.0 E. Glenns Ferry1974Girder and Floorbeam System1,122 ft9,750Fair
I 84 Wbl over Rd;uprr;snake R;glenns F
No. 000000000015970
Elmore County1.0 E. Glenns Ferry1974Girder and Floorbeam System1,094 ft9,750Fair
I 84 Ebl over Snake River;king Hill
No. 000000000015980
Elmore County7.4 E. Glenns Ferry1974Girder and Floorbeam System998 ft9,750Fair
I 84 Wbl over Snake River;king Hill
No. 000000000015985
Elmore County7.4 E. Glenns Ferry1974Girder and Floorbeam System998 ft9,750Fair
I 84 Ebl over Malad R.Gorge;n.Tuttle
No. 000000000016045
Gooding County5.6 E. Bliss1975Girder and Floorbeam System198 ft9,250Fair
I 84 Wbl over Malad R.Gorge;n.Tuttle
No. 000000000016050
Gooding County5.6 E. Bliss1975Girder and Floorbeam System228 ft9,250Fair
SMA7334;GUN Clb RD over Lindsay Creek
No. 000000000021470
Nez Perce CountyIn Lewiston;gun Club Rd.1971Girder and Floorbeam System22 ft5,500Fair
US 20 26;FAP 21SPR over Snake River;nyssa Bridge
No. 000000000012200
Canyon County6.1 N. 0.8 W. Parma1957Girder and Floorbeam System697 ft5,300Fair
SH 200 over Bnrr;lake Pend Oreille
No. 000000000019050
Bonner CountyAt Hope Nwcl1963Girder and Floorbeam System1,318 ft3,000Fair
SH 39 Sbl over Snake R.;am.Falls Br.
No. 000000000014145
Power County0.7 W. American Falls1975Girder and Floorbeam System1,144 ft2,900Fair
Central Grade Road over Hatwai Creek
No. 000000000029910
Nez Perce County2.2 N. 3.0 E. Lewiston1968Girder and Floorbeam System52 ft650Fair
Lenore Grade Road over Clearwater R;lenore Br.
No. 000000000029965
Nez Perce CountyAt Lenore;adjacent US 121935Girder and Floorbeam System526 ft400Poor
S Daisy Street over Spring Creek
No. 000000000032765
Lemhi CountyIn Salmon;daisy ST1975Girder and Floorbeam System23 ft250Fair
North Apple Street over Little Wood River
No. 000000000024905
Lincoln CountyIn Shoshone;n.Apple ST1920Girder and Floorbeam System45 ft200Poor
S 2000 E over Darby Creek
No. 000000000036110
Teton County3.3 S. 2.5 E. Driggs2014Girder and Floorbeam System44 ft200Good
Firth Wapello Road over Sand Creek
No. 000000000022706
Bingham County1.4 S 1.3 E Firth2010Girder and Floorbeam System48 ft160Good
N 300 W over I 84;EIRR;300 W Gs
No. 000000000024835
Jerome County1.7 W. Jerome1971Girder and Floorbeam System388 ft130Fair
E Blue Lake RD over Thompson Lake Outlet Br
No. 000000000030585
Kootenai County2.2 N. 2.7 E. Harrison1986Girder and Floorbeam System48 ft110Fair
Custer Motorway over Yankee Fork
No. 040603000001107
Custer CountyNo Data Entered1992Girder and Floorbeam System30 ft100Poor
Custer Motorway over Yankee Fork
No. 040603000001114
Custer County25 Miles NE of Stanley Id1973Girder and Floorbeam System25 ft100Fair
No Data Entered over Jordan Creek
No. 040603000001188
Custer CountyNo Data Entered1972Girder and Floorbeam System34 ft100Fair
No Data Entered over No Data Entered
No. 040603000001191
Custer CountyNo Data Entered1972Girder and Floorbeam System102 ft100Good
Fdr 369 over Brushy Fork Creek
No. 010506000001002
Idaho County9 MI East of Powell Rs1993Girder and Floorbeam System113 ft60Good
Road to Campground over East Fork Weiser River
No. 041201000003107
Adams CountyNo Data Entered2005Girder and Floorbeam System54 ft50Good
NFSR 50172 over E Fk Weiser River
No. 041201000015076
Adams CountyNo Data Entered2013Girder and Floorbeam System66 ft50Good
Airport Road over Bear River
No. 000000000022225
Bear Lake County2.2 N. 1.1 W. Dingle1916Girder and Floorbeam System202 ft50Fair
Road over Mccoy Creek Bridge
No. 041504000001099
Bonneville CountyNo Data Entered1978Girder and Floorbeam System135 ft50Good
Fs Route No. 628 over E.F. Boulder
No. 010400000036224
Boundary CountyEast Fork Boulder2022Girder and Floorbeam System65 ft50Good
2900 West over Big Lost River
No. 000000000031515
Butte County3.5 S. 1.2 E. Arco1978Girder and Floorbeam System57 ft50Fair
Beaver Creek Road over Marsh Creek
No. 040601000001105
Custer CountyCrosses Marsh Creek1964Girder and Floorbeam System51 ft50Fair
No Data Entered over Yankee Fork
No. 040603000001185
Custer CountyNo Data Entered1972Girder and Floorbeam System113 ft50Fair
No Data Entered over Yankee Fork
No. 040603000001186
Custer CountyNo Data Entered1972Girder and Floorbeam System65 ft50Fair
No Data Entered over Yankee Fork
No. 040603000001187
Custer CountyNo Data Entered1972Girder and Floorbeam System105 ft50Fair
No Data Entered over No Data Entered
No. 040603000001190
Custer CountyNo Data Entered1972Girder and Floorbeam System87 ft50Poor
Beaver Creek Road over Beaver Creek
No. 040604000001119
Custer CountyNo Data Entered1953Girder and Floorbeam System74 ft50Fair
No Data Entered over No Data Entered
No. 011752000028573
Latah CountyNo Data Entered2017Girder and Floorbeam System35 ft50Good
Ringbone Mine Rd. over Napias Creek
No. 041301000001196
Lemhi CountyNo Data Entered1994Girder and Floorbeam System101 ft50Fair
Fs Route 326 over Frazier Creek
No. 010402000000172
Shoshone County10 Miles from Avery Id1938Girder and Floorbeam System78 ft50Fair
Fs Route 218 over Red Ives Creek
No. 010402000000225
Shoshone CountyAt Red Ives Work Center1936Girder and Floorbeam System37 ft50Good
Fs Route 3099 over Cda River
No. 010403000000009
Shoshone County15.5 MI F/Magee R.S.1954Girder and Floorbeam System49 ft50Fair
Fs Route No. 537 over Big Creek
No. 010404000000117
Shoshone CountyBig Creek1939Girder and Floorbeam System98 ft50Poor
No Data Entered over Big Creek
No. 010404000000118
Shoshone CountyBig Creek1939Girder and Floorbeam System62 ft50Fair
Timberline Road over E. Fk. Wood River
No. 000000000023743
Blaine County1.1 E Gimlet1920Girder and Floorbeam System42 ft40Fair
STC4751;CTTNWD Crk over Cottonwood Creek
No. 000000000029930
Nez Perce County3.8 N. 0.8 E. Culdesac1968Girder and Floorbeam System51 ft40Fair
Idaho Road over S. Fork Rock Creek
No. 000000000030033
Benewah County0.4 MI N of E Truax RD2020Girder and Floorbeam System42 ft36Good
Strawberry Road over Weiser River
No. 000000000026410
Adams County1.9 S. 4.9 W. New Meadows1923Girder and Floorbeam System51 ft30Fair
Old Mill Road over Hangman Creek
No. 000000000030005
Benewah County1.4 N. 1.7 W. Tensed1979Girder and Floorbeam System61 ft30Fair
White Mtn Road over Dodge Creek
No. 000000000030320
Boundary County3.3 S. 2.8 W. Naples1983Girder and Floorbeam System31 ft30Fair
Moser Road over Cow Creek
No. 000000000029915
Nez Perce County1.5 S. 4.4 W. Genesee1970Girder and Floorbeam System51 ft30Fair
Deadwood Road over Deadwood River
No. 000000000033835
Valley County1 N. Deadwood Resv1959Girder and Floorbeam System108 ft30Fair

Counties with the most

Custer County10
Nez Perce County5
Shoshone County5
Elmore County4
Adams County3
Gooding County2
Lemhi County2
Boundary County2
Benewah County2
Canyon County1
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