US Bridges

FAS 3700 over Little Nemaha River

Fair

Otoe County, Nebraska · JCT N2/N50 1N 5.3W · Structure no. C006621605

Built
1976
49 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
226 ft
3 main spans
Daily traffic
140
2011 count
Owner
County
County Highway Agency

About this bridge

FAS 3700 over Little Nemaha River is a steel continuous stringer/multi-beam or girder carrying FAS 3700 over Little Nemaha River in Otoe County, Nebraska. It was built in 1976, so it is 49 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.

It carries about 140 vehicles a day, projected to reach 140 by 2033. The structure is 226 ft (68.9 m) long and 30 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesFAS 3700
CrossesLittle Nemaha River
LocationJCT N2/N50 1N 5.3W
RouteCounty Highway 3700
CountyOtoe County
StateNebraska
Coordinates40.6823, -96.279
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating25.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length226 ft (68.9 m)
Longest span85 ft (25.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2011)
Projected traffic140 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 3700 over Little Nemaha River built?

It was built in 1976, making it 49 years old in 2025.

What condition is FAS 3700 over 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 October 2023.

How much traffic does FAS 3700 over Little Nemaha River carry?

About 140 vehicles per day (2011 count).

How long is FAS 3700 over Little Nemaha River?

The structure is 226 ft (68.9 m) long with a longest span of 85 ft (25.9 m) and a deck 30 ft wide.

Who owns FAS 3700 over Little Nemaha River?

It is owned by the County Highway Agency.