US Bridges

FAS 1660 over South Loup River

Good

Custer County, Nebraska · JCT N21/40 2W 8.9N · Structure no. C002114910

Built
1985
40 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
142 ft
3 main spans
Daily traffic
330
2011 count
Owner
County
County Highway Agency

About this bridge

FAS 1660 over South Loup River is a steel continuous stringer/multi-beam or girder carrying FAS 1660 over South Loup River in Custer County, Nebraska. It was built in 1985, so it is 40 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 330 vehicles a day, projected to reach 330 by 2033. The structure is 142 ft (43.3 m) long and 28 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesFAS 1660
CrossesSouth Loup River
LocationJCT N21/40 2W 8.9N
RouteCounty Highway 1660
Coordinates41.2639, -99.7976
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.7 US tons
Inventory rating29.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length142 ft (43.3 m)
Longest span55 ft (16.8 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2011)
Projected traffic330 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 1660 over South Loup River built?

It was built in 1985, making it 40 years old in 2025.

What condition is FAS 1660 over South Loup River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does FAS 1660 over South Loup River carry?

About 330 vehicles per day (2011 count).

How long is FAS 1660 over South Loup River?

The structure is 142 ft (43.3 m) long with a longest span of 55 ft (16.8 m) and a deck 28 ft wide.

Who owns FAS 1660 over South Loup River?

It is owned by the County Highway Agency.