US Bridges

CO RD 755/FAS 1580 over S Ch Platte River

Fair

Dawson County, Nebraska · JCT I80/L-24A .6S .6W · Structure no. C002414005

Built
1978
47 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
354 ft
4 main spans
Daily traffic
640
2011 count
Owner
County
County Highway Agency

About this bridge

CO RD 755/FAS 1580 over S Ch Platte River is a steel continuous stringer/multi-beam or girder carrying CO RD 755/FAS 1580 over S Ch Platte River in Dawson County, Nebraska. It was built in 1978, so it is 47 years old, younger 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 640 vehicles a day, projected to reach 640 by 2033. The structure is 354 ft (107.9 m) long and 32 ft wide. If it were closed, the detour would be 198.8 mi (320 km).

Location

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CarriesCO RD 755/FAS 1580
CrossesS Ch Platte River
LocationJCT I80/L-24A .6S .6W
RouteCounty Highway 1580
CountyDawson County
StateNebraska
Coordinates40.7726, -99.8551
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.8 US tons
Inventory rating17.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length354 ft (107.9 m)
Longest span99 ft (30.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic640 (2011)
Projected traffic640 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed198.8 mi (320 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 755/FAS 1580 over S Ch Platte River built?

It was built in 1978, making it 47 years old in 2025.

What condition is CO RD 755/FAS 1580 over S Ch 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 CO RD 755/FAS 1580 over S Ch Platte River carry?

About 640 vehicles per day (2011 count).

How long is CO RD 755/FAS 1580 over S Ch Platte River?

The structure is 354 ft (107.9 m) long with a longest span of 99 ft (30.2 m) and a deck 32 ft wide.

Who owns CO RD 755/FAS 1580 over S Ch Platte River?

It is owned by the County Highway Agency.