US Bridges

FAS 3665 over S Fk Little Nemaha River

FairPosted for load

Otoe County, Nebraska · JCT N50/S-66E 6W .8S · Structure no. C006601905

Built
1950
75 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
186 ft
3 main spans
Daily traffic
90
2011 count
Owner
County
County Highway Agency

About this bridge

FAS 3665 over S Fk Little Nemaha River is a steel continuous stringer/multi-beam or girder carrying FAS 3665 over S Fk Little Nemaha River in Otoe County, Nebraska. It was built in 1950, so it is 75 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 90 vehicles a day, projected to reach 60 by 2033. The structure is 186 ft (56.7 m) long and 24 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesFAS 3665
CrossesS Fk Little Nemaha River
LocationJCT N50/S-66E 6W .8S
RouteCounty Highway 3665
CountyOtoe County
StateNebraska
Coordinates40.5253, -96.2935
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.2 US tons
Inventory rating20.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length186 ft (56.7 m)
Longest span75 ft (22.9 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2011)
Projected traffic60 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 3665 over S Fk Little Nemaha River built?

It was built in 1950, making it 75 years old in 2025.

What condition is FAS 3665 over S Fk Little Nemaha 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 November 2024.

How much traffic does FAS 3665 over S Fk Little Nemaha River carry?

About 90 vehicles per day (2011 count).

How long is FAS 3665 over S Fk Little Nemaha River?

The structure is 186 ft (56.7 m) long with a longest span of 75 ft (22.9 m) and a deck 24 ft wide.

Who owns FAS 3665 over S Fk Little Nemaha River?

It is owned by the County Highway Agency.