US Bridges

FAS 3704 over N Fk Little Nemaha River

Fair

Otoe County, Nebraska · 0E Dunbar · Structure no. C006641830

Built
1963
62 years old, rebuilt 1989
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
214 ft
3 main spans
Daily traffic
230
2011 count
Owner
County
County Highway Agency

About this bridge

FAS 3704 over N Fk Little Nemaha River is a steel continuous stringer/multi-beam or girder carrying FAS 3704 over N Fk Little Nemaha River in Otoe County, Nebraska. It was built in 1963 and reconstructed in 1989, so it is 62 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 230 vehicles a day, projected to reach 414 by 2033. The structure is 214 ft (65.2 m) long and 47 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

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CarriesFAS 3704
CrossesN Fk Little Nemaha River
Location0E Dunbar
RouteCounty Highway 3704
CountyOtoe County
StateNebraska
Coordinates40.6723, -96.0286
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length214 ft (65.2 m)
Longest span80 ft (24.4 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2011)
Projected traffic414 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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 3704 over N Fk Little Nemaha River built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1989.

What condition is FAS 3704 over N 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 October 2023.

How much traffic does FAS 3704 over N Fk Little Nemaha River carry?

About 230 vehicles per day (2011 count).

How long is FAS 3704 over N Fk Little Nemaha River?

The structure is 214 ft (65.2 m) long with a longest span of 80 ft (24.4 m) and a deck 47 ft wide.

Who owns FAS 3704 over N Fk Little Nemaha River?

It is owned by the County Highway Agency.