US Bridges

Natrona County, Wyoming bridges

Natrona County has 135 bridges and culverts in the National Bridge Inventory, the oldest built in 1924. 5 (4%) are rated poor. The most common type is stringer/multi-beam or girder (54%).

Bridges
135
Good
33%
Fair
63%
Poor
4%
5 bridges
Average age
46.1 yrs
Posted or closed
15

Map of bridges in Natrona County

Green good, amber fair, red poor. Click a marker for details.

Search bridges in Natrona County

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Condition

4%poor
Good33%(45)
Fair63%(85)
Poor4%(5)

When they were built

<1900: 0 bridges<19001900s: 0 bridges19001910s: 0 bridges19101920s: 3 bridges319201930s: 0 bridges19301940s: 2 bridges219401950s: 12 bridges1219501960s: 27 bridges2719601970s: 29 bridges2919701980s: 28 bridges2819801990s: 10 bridges1019902000s: 12 bridges1220002010s: 6 bridges620102020s: 6 bridges62020
Bridges built per decade. Year built as recorded in the inventory; reconstruction years are not included.

Busiest

  1. Wyo 220 over Garden Creek
    26,351 vehicles/day
    Fair
  2. Wyo 220 over North Platte River
    14,749 vehicles/day
    Fair
  3. Wyo 220 over BNSF Railway
    14,641 vehicles/day
    Fair
  4. I-25 Sbl over North Mckinley Street
    12,618 vehicles/day
    Fair
  5. I-25 Nbl over North Mckinley Street
    12,577 vehicles/day
    Fair

Longest

  1. I-25 Nbl and Sbl over Walsh Drive
    960 ft
    Good
  2. Wyo 257 over North Platte River
    505 ft
    Fair
  3. US 20/26/87 over I-25
    490 ft
    Fair
  4. I-25 Nbl and Sbl over North Platte River
    450 ft
    Good
  5. W F Street over North Platte River
    450 ft
    Good

Oldest

  1. Na Cnty RD 110 over Cloud Creek
    Built 1924
    Fair
  2. Na Cnty RD 412 over Hogback Draw
    Built 1929
    Poor
  3. Na Cnty RD 412 over Mowrey Draw
    Built 1929
    Fair
  4. Na Cnty RD 102 over Badwater Creek
    Built 1940
    Poor
  5. I-25 Service Road over Unnamed Draw
    Built 1948
    Good

All bridges in Natrona County

Busiest first · showing 1–135 of 135
Bridges in Natrona County
BridgeLocationBuiltTypeLengthDaily trafficCondition
Wyo 220 over Garden Creek
No. KWN
Casper2001Culvert54 ft26,351Fair
Wyo 220 over North Platte River
No. BUN
Casper1969Stringer/Multi-beam or Girder341 ft14,749Fair
Wyo 220 over BNSF Railway
No. BUO
Casper1969Stringer/Multi-beam or Girder345 ft14,641Fair
I-25 Sbl over North Mckinley Street
No. DKU
Casper Marginal1958Stringer/Multi-beam or Girder165 ft12,618Fair
I-25 Nbl over North Mckinley Street
No. AIF
Casper Marginal1958Stringer/Multi-beam or Girder165 ft12,577Fair
I-25 Nbl and Sbl over Walsh Drive
No. NDR
Casper Marginal2022Stringer/Multi-beam or Girder960 ft12,577Good
US 20 over North Platte River
No. DEN
Casper1979Stringer/Multi-beam or Girder332 ft12,160Fair
E 2nd Street over Elkhorn Creek
No. LNV
Casper Streets2003Culvert31 ft11,829Good
E 2nd Street over Claude Creek
No. LNW
East Casper2004Culvert21 ft11,829Good
Wyo 258 (wyo Blvd) over North Platte River
No. CWD
Casper1974Stringer/Multi-beam or Girder394 ft11,746Fair
US 20 over Casper Creek
No. DDF
Casper1977Stringer/Multi-beam or Girder148 ft11,584Fair
US 20 over C and NW Railroad
No. DDG
Casper1977Stringer/Multi-beam or Girder270 ft11,584Fair
I-25 Sbl over US 20 / 26 Connector
No. EWP
Casper Marginal1984Stringer/Multi-beam or Girder226 ft11,193Fair
N Beverly Street over I-25
No. AIB
Casper Marginal1960Frame96 ft9,603Fair
I-25 Nbl and Sbl over Center Street
No. NFH
Casper Marginal2024Stringer/Multi-beam or Girder120 ft8,692Good
I-25 Sbl over Wyo 220
No. FDH
Casper Marginal1985Stringer/Multi-beam or Girder185 ft8,514Fair
US 20/26/87 over I-25
No. CWZ
Casper Marginal1968Stringer/Multi-beam or Girder490 ft8,141Fair
I-25 Nbl over US 20 / 26 Connector
No. EWO
Casper Marginal1984Stringer/Multi-beam or Girder226 ft7,648Fair
Na Cnty RD 305 over North Platte River
No. LJD
Robertson Rd.2002Stringer/Multi-beam or Girder388 ft7,360Fair
W 13th Street over Garden Creek
No. JOC
13th ST - Casper1992Culvert30 ft6,962Good
I-25 Nbl over Wyo 220
No. FDG
Casper Marginal1985Stringer/Multi-beam or Girder185 ft6,857Fair
I-25 Nbl and Sbl over North Platte River
No. NFG
Casper Marginal2024Stringer/Multi-beam or Girder450 ft6,857Good
W 25th Street over Garden Creek
No. DRH
Casper Streets1960Frame23 ft6,607Good
I-25 Sbl over Na CR 600 (blackmore)
No. AHU
Casper Marginal1968Tee Beam112 ft6,490Fair
I-25 Sbl over Wyo 258 (wyoming Blvd)
No. LXC
Casper Marginal2007Stringer/Multi-beam or Girder230 ft6,490Good
I-25 Nbl over Na CR 600 (blackmore)
No. AHT
Casper Marginal1968Tee Beam112 ft6,118Fair
I-25 Nbl over Wyo 258 (wyoming Blvd)
No. LXB
Casper Marginal2006Stringer/Multi-beam or Girder230 ft6,118Good
US 20/26 Conn. Ebl over Na County Road 129
No. CDF
Casper1960Slab93 ft5,881Fair
US 20/26 Conn. Ebl over BNSF / Casper Creek
No. CTT
Casper1961Stringer/Multi-beam or Girder418 ft5,881Fair
Na Cnty RD 305 over Unnamed Draw
No. MPP
Casper2015Culvert23 ft5,042Good
US 20/26 Conn. Wbl over Na County Road 129
No. CDG
Casper1960Slab93 ft4,929Fair
US 20/26 Conn. Wbl over BNSF / Casper Creek
No. CDI
Casper1961Stringer/Multi-beam or Girder418 ft4,929Fair
W F Street over North Platte River
No. NFI
City of Casper2024Stringer/Multi-beam or Girder450 ft4,929Good
I-25 Sbl over Machinery Pass
No. AHP
Douglas - Casper1966Tee Beam97 ft4,838Fair
I-25 Sbl over Dry Muddy Creek
No. AHR
Douglas - Casper1966Culvert36 ft4,838Good
Wyo 254 over Casper Creek
No. DEZ
Salt Creek Conn Casper1979Stringer/Multi-beam or Girder158 ft4,824Fair
Wyo 254 over US 20 / 26 Connector
No. MMB
Casper2015Stringer/Multi-beam or Girder280 ft4,824Good
I-25 Nbl over Machinery Pass
No. AHO
Douglas - Casper1966Tee Beam97 ft4,312Fair
I-25 Nbl over Dry Muddy Creek
No. AHQ
Douglas - Casper1966Culvert36 ft4,312Good
Wyo 253 over I-25
No. CSE
Casper Marginal1968Stringer/Multi-beam or Girder316 ft4,190Fair
Wyo 259 over Teapot Creek
No. LBD
I-25 - Midwest Road1999Stringer/Multi-beam or Girder164 ft3,919Fair
Wyo 259 over Salt Creek
No. LDB
JCT I-25 - Midwest2000Stringer/Multi-beam or Girder199 ft3,919Fair
Wyo 259 over East Teapot Creek
No. LBC
Casper-Midwest Road1999Stringer/Multi-beam or Girder131 ft3,821Fair
I-25 Sbl over Wardwell Road Intg
No. AIT
Casper Marginal1964Slab84 ft3,548Fair
I-25 Sbl over Westwinds Road
No. AIV
Casper Marginal1964Slab88 ft3,548Fair
I-25 Nbl over Wardwell Road Intg
No. AIS
Casper Marginal1964Slab84 ft3,544Fair
I-25 Nbl over Westwinds Road
No. AIU
Casper Marginal1964Slab88 ft3,544Fair
Wyo 220 over Casper Canal
No. BUG
Muddy Gap Jct-Wyo 487 JCT1967Stringer/Multi-beam or Girder84 ft3,090Poor
Wyo 220 over Eagle Creek
No. BUH
Muddy Gap Jct-Wyo 487 JCT1967Stringer/Multi-beam or Girder150 ft3,090Fair
Wyo 220 over Bates Creek
No. BUJ
Muddy Gap Jct-Wyo 487 JCT1963Slab119 ft3,090Fair
Wyo 220 over North Platte River
No. LIK
13 MI SW of Casper2002Stringer/Multi-beam or Girder360 ft3,090Fair
Wyo 220 over Cottonwood Creek
No. BUK
Wyo 487 JCT - Casper1965Culvert23 ft3,058Fair
Wyo 220 over Unnamed Draw
No. GUY
Muddy Gap-Casper1970Culvert25 ft3,058Fair
Wyo 256 over North Platte River
No. CSG
JCT US 20 2687 - North1971Stringer/Multi-beam or Girder320 ft3,055Fair
US 20/26/87 Ebl over Elkhorn Creek
No. CON
East Yellowstone - Casper1957Slab81 ft3,053Good
US 20 over Johnson Canal
No. CBI
Casper - Shoshoni1976Tee Beam59 ft2,931Good
US 20 over Casper Canal
No. CBK
Casper - Shoshoni1976Tee Beam69 ft2,931Good
US 20 over South Fork Casper Creek
No. CBL
Casper - Shoshoni1976Tee Beam112 ft2,931Good
US 20 over Middle Fork Casper Creek
No. EWK
Casper-Shoshoni1984Stringer/Multi-beam or Girder122 ft2,931Fair
US 20 over Middle Fork Casper Creek
No. EWL
Casper-Shoshoni1984Stringer/Multi-beam or Girder126 ft2,931Fair
US 20 over Middle Fork Casper Creek
No. EWM
Casper-Shoshoni1984Stringer/Multi-beam or Girder100 ft2,931Fair
Bryan Stock Trail over North Platte River
No. FEA
Casper1982Stringer/Multi-beam or Girder247 ft2,887Good
US 20/26/87 over Claude Creek
No. BLV
East Yellowstone - Casper1957Culvert22 ft2,851Fair
I-25 Nbl over Ormsby Road
No. AIW
Casper - Kaycee1971Tee Beam140 ft2,751Good
I-25 Nbl over Machinery Pass
No. AIZ
Casper - Kaycee1972Tee Beam130 ft2,751Good
I-25 Sbl over Ormsby Road
No. AIX
Casper - Kaycee1971Tee Beam140 ft2,721Good
I-25 Sbl over Machinery Pass
No. AJA
Casper - Kaycee1972Tee Beam130 ft2,721Good
US 20 over Wyatt Draw
No. CBR
Casper - Shoshoni1973Tee Beam134 ft2,450Fair
US 20 over South Fork Powder River
No. CBT
Casper - Shoshoni1973Stringer/Multi-beam or Girder280 ft2,450Fair
US 20/26/87 Wbl over Elkhorn Creek
No. BLW
East Yellowstone - Casper1957Slab81 ft2,411Good
Wyo 220 over Horse Creek
No. BUF
Muddy Gap Jct-Wyo 487 JCT1970Tee Beam154 ft2,303Fair
Wyo 387 over Coal Draw
No. DDA
Midwest - Reno JCT1977Stringer/Multi-beam or Girder450 ft2,173Fair
Wyo 220 over Rush Creek
No. BUC
Muddy Gap Jct-Wyo 487 JCT1968Tee Beam190 ft1,983Fair
Wyo 220 over Sweetwater River
No. BUD
Muddy Gap Jct-Wyo 487 JCT1970Stringer/Multi-beam or Girder143 ft1,983Fair
Wyo 220 over Dry Creek
No. BUE
Muddy Gap Jct-Wyo 487 JCT1970Stringer/Multi-beam or Girder216 ft1,983Fair
I-25 Nbl over Wyo 387
No. DFL
Casper - Kaycee1980Tee Beam157 ft1,749Fair
I-25 Nbl over I-25 Service Road
No. DFM
Casper - Kaycee1980Stringer/Multi-beam or Girder164 ft1,749Good
I-25 Nbl over Dugout Creek
No. DFO
Casper - Kaycee1979Stringer/Multi-beam or Girder192 ft1,749Good
I-25 Nbl over Castle Creek
No. DFE
Casper - Kaycee1980Stringer/Multi-beam or Girder186 ft1,656Good
I-25 Nbl over Machinery Pass
No. DFG
Casper - Kaycee1980Tee Beam88 ft1,656Good
I-25 Nbl over Machinery Pass
No. DFJ
Casper - Kaycee1980Tee Beam75 ft1,656Fair
I-25 Nbl over South Fork Castle Creek
No. DLY
Casper - Kaycee1981Stringer/Multi-beam or Girder232 ft1,656Good
I-25 Nbl over Wyo 259
No. DOI
Casper - Kaycee1976Tee Beam138 ft1,656Fair
I-25 Sbl over Na CR 115 (smokey Gap)
No. DFK
Casper - Kaycee1980Tee Beam157 ft1,647Fair
I-25 Sbl over I-25 Service Road
No. DFN
Casper - Kaycee1980Stringer/Multi-beam or Girder164 ft1,647Fair
I-25 Sbl over Dugout Creek
No. DFP
Casper - Kaycee1979Stringer/Multi-beam or Girder192 ft1,647Good
I-25 Sbl over Castle Creek
No. DFD
Casper - Kaycee1980Stringer/Multi-beam or Girder186 ft1,520Fair
I-25 Sbl over Machinery Pass
No. DFF
Casper - Kaycee1980Tee Beam88 ft1,520Fair
I-25 Sbl over Machinery Pass
No. DFI
Casper - Kaycee1980Tee Beam75 ft1,520Fair
I-25 Sbl over South Fork Castle Creek
No. DLZ
Casper - Kaycee1981Stringer/Multi-beam or Girder232 ft1,520Good
I-25 Sbl over Wyo 259
No. DOJ
Casper - Kaycee1976Tee Beam138 ft1,520Fair
Wyo 257 over North Platte River
No. MBT
Casper Streets2013Stringer/Multi-beam or Girder505 ft1,073Fair
Wyo 257 over Unnamed Draw
No. MKF
Casper Streets2013Stringer/Multi-beam or Girder105 ft1,073Fair
Na Cnty RD 110 over Cloud Creek
No. DRA
18 Miles N. of Natrona1924Truss - Thru147 ft1,070Fair
Na Cnty RD 201 over Poison Spider Creek
No. JNZ
11 Miles West of Casper1991Stringer/Multi-beam or Girder72 ft949Fair
Wyo 487 over Sand Creek
No. DLP
Medicine Bow - Jt Wyo 2201981Stringer/Multi-beam or Girder86 ft935Fair
Wyo 487 over Bates Creek
No. DLQ
Medicine Bow - Jt Wyo 2201981Stringer/Multi-beam or Girder86 ft935Fair
Wyo 487 over Little Red Creek
No. FGC
Medicine Bow - Jt Wyo 2201984Culvert29 ft935Good
Na Cnty RD 131 over Salt Creek
No. MLD
Midwest2012Stringer/Multi-beam or Girder230 ft597Good
Wyo 387 over Salt Creek
No. AJG
JCT I-25 - Reno JCT1952Stringer/Multi-beam or Girder248 ft428Fair
Wyo 387 over Bothwell Draw
No. AJH
JCT I-25 - Reno JCT1952Culvert34 ft428Fair
I-25 Service Road over Dugout Creek
No. AJI
Wyo 387 JCT - Buffalo1957Slab156 ft302Fair
Na Cnty RD 308 over North Platte River
No. KKR
Bessemer Road CN1-3081997Stringer/Multi-beam or Girder299 ft281Fair
US 20 Service Road over Elkhorn Creek
No. BLX
East Yellowstone - Casper1957Slab81 ft181Fair
Shepperson Road over I-25
No. DFH
Casper - Kaycee1980Stringer/Multi-beam or Girder327 ft165Good
Unnamed Road over I-25
No. DLV
Casper - Kaycee1981Stringer/Multi-beam or Girder258 ft165Good
Na Cnty RD 412 over Hogback Draw
No. FOB
3 Miles Northeast Alcova1929Stringer/Multi-beam or Girder74 ft165Poor
Na Cnty RD 412 over Mowrey Draw
No. FOC
3 MI N.E. of Alcova1929Stringer/Multi-beam or Girder70 ft165Fair
Ranch Road over I-25
No. LGC
Casper - Kaycee2002Stringer/Multi-beam or Girder259 ft165Good
Hereford Lane over I-25
No. BMA
Casper Marginal1960Frame90 ft136Poor
Na Cnty RD 125 over Middle Fork Casper Creek
No. DJQ
19 Miles N.W. of Casper1973Culvert29 ft124Fair
Veteranscemeteryrd over North Platte River
No. FBZ
T34N R079W S361985Stringer/Multi-beam or Girder275 ft100Fair
I-25 Service Road over Unnamed Draw
No. AIY
Bar Nunn North1948Culvert25 ft85Good
I-25 Service Road over Horse Creek
No. AJB
Bar Nunn North1950Culvert21 ft85Fair
I-25 Service Road over Sheep Creek
No. AJC
Bar Nunn North1950Culvert21 ft85Good
Na Cnty RD 408 over North Platte River
No. DUZ
7.5 Miles S.W. of Alcova1957Truss - Thru144 ft84Fair
6902: Pathfinder R over North Platte River
No. 000000000L59262
10 Miles SW of Alcova Wy1995Tee Beam204 ft70Fair
Na Cnty RD 407 over North Platte River
No. MZJ
Alcova2019Stringer/Multi-beam or Girder360 ft64Fair
Na Cnty RD 110 over South Fork Powder River
No. DDK
44 Miles N.W. of Casper1977Tee Beam212 ft53Poor
Na Cnty RD 402 over Corral Creek
No. DUH
16 Miles S. of Casper1970Stringer/Multi-beam or Girder36 ft24Fair
Na Cnty RD 402 over Bates Creek
No. NDI
9 MI SW of RD Crk School2021Stringer/Multi-beam or Girder85 ft24Good
Na Cnty RD 209 over M Casper Creek
No. DUM
0.30 Miles S. of Natrona1970Stringer/Multi-beam or Girder35 ft23Fair
Na Cnty RD 102 over Badwater Creek
No. DRF
20 Miles N.W. of Arminto1940Girder and Floorbeam System31 ft22Poor
Na Cnty RD 106 over South Fork Powder River
No. DRE
3 Miles N. of Powder Rive1979Tee Beam131 ft20Fair
Na Cnty RD 106 over BNSF Railway
No. NCN
Powder River Streets2022Stringer/Multi-beam or Girder195 ft20Good
Na Cnty RD 101 over Badwater Creek
No. FCZ
23 Miles N.W. of Waltman1984Stringer/Multi-beam or Girder110 ft12Fair
Na Cnty RD 410 over Sweetwater River
No. FCY
43 Miles S.W. of Casper1984Stringer/Multi-beam or Girder129 ft11Fair
Na Cnty RD 117 over Unnamed Draw
No. DUL
1 Mile East of Edgerton1967Stringer/Multi-beam or Girder101 ft6Fair
Na Cnty RD 319 over Casper Canal
No. FRS
14 Miles E. of Casper1992Culvert29 ft6Good
Na Cnty RD 319 over Casper Canal
No. KUS
15 Miles East of Casper1998Culvert20 ft6Good
Na Cnty RD 319 over Casper Canal
No. KWJ
Oregon Trail Road1998Tee Beam103 ft6Good
Na Cnty RD 316 over Casper Canal
No. LEA
20 Miles SW of Casper2003Stringer/Multi-beam or Girder63 ft6Good
Na Cnty RD 316 over Casper Canal
No. LTH
15 MI SW of Casper2004Stringer/Multi-beam or Girder64 ft6Good
Na Cnty RD 403 over Bolton Creek
No. KFX
20 Mi. S.W. of Casper1994Stringer/Multi-beam or Girder60 ft2Fair
Na Cnty RD 403 over Stinking Creek
No. LWM
23 MI SW of Casper2007Culvert42 ft2Fair

Structure types in Natrona County

Stringer/Multi-beam or Girder7354.1%
Tee Beam2619.3%
Culvert1914.1%
Slab118.1%
Frame32.2%
Truss - Thru21.5%
Girder and Floorbeam System10.7%

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