US Bridges

N91 over Sioux Creek

Fair

Loup County, Nebraska · 8E Taylor · Structure no. S091 05322

Built
1994
31 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
1,280
2018 count
Owner
State
State Highway Agency

About this bridge

N91 over Sioux Creek is a concrete culvert carrying N91 over Sioux Creek in Loup County, Nebraska. It was built in 1994, so it is 31 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 1,280 vehicles a day, roughly 14% of them trucks, projected to reach 1,664 by 2038. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesN91
CrossesSioux Creek
Location8E Taylor
RouteState Highway 91
CountyLoup County
StateNebraska
Coordinates41.7594, -99.2375
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,280 (2018)
Projected traffic1,664 by 2038
Trucks14%
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

OwnerState Highway Agency
Maintained byState 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 N91 over Sioux Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is N91 over Sioux Creek 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 March 2023.

How much traffic does N91 over Sioux Creek carry?

About 1,280 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is N91 over Sioux Creek?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m).

Who owns N91 over Sioux Creek?

It is owned by the State Highway Agency.