US Bridges

FAS 1855 over Platte River

Fair

Dawson County, Nebraska · JCT I80/L-24B .7S · Structure no. C002407305

Built
1977
48 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
910 ft
13 main spans
Daily traffic
1,335
2011 count
Owner
County
County Highway Agency

About this bridge

FAS 1855 over Platte River is a prestressed concrete stringer/multi-beam or girder carrying FAS 1855 over Platte River in Dawson County, Nebraska. It was built in 1977, so it is 48 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,335 vehicles a day, roughly 9% of them trucks, projected to reach 1,869 by 2033. The structure is 910 ft (277.4 m) long and 32 ft wide. If it were closed, the detour would be 211.3 mi (340 km).

Location

Open in Google Maps
CarriesFAS 1855
CrossesPlatte River
LocationJCT I80/L-24B .7S
RouteCounty Highway 1855
CountyDawson County
StateNebraska
Coordinates40.6814, -99.5402
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans13
Design loadHS 20
Structure length910 ft (277.4 m)
Longest span70 ft (21.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,335 (2011)
Projected traffic1,869 by 2033
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed211.3 mi (340 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 1855 over Platte River built?

It was built in 1977, making it 48 years old in 2025.

What condition is FAS 1855 over Platte River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does FAS 1855 over Platte River carry?

About 1,335 vehicles per day (2011 count), of which roughly 9% are trucks.

How long is FAS 1855 over Platte River?

The structure is 910 ft (277.4 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.

Who owns FAS 1855 over Platte River?

It is owned by the County Highway Agency.