US Bridges

CR M-31 over Ninemile Creek

Good

Scotts Bluff County, Nebraska · 2E 2N of Minatare · Structure no. C007932410

Built
1965
60 years old, rebuilt 2024
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
72 ft
3 main spans
Daily traffic
45
2003 count
Owner
County
County Highway Agency

About this bridge

CR M-31 over Ninemile Creek is a concrete stringer/multi-beam or girder carrying CR M-31 over Ninemile Creek in Scotts Bluff County, Nebraska. It was built in 1965 and reconstructed in 2024, so it is 60 years old, older 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 45 vehicles a day, projected to reach 76 by 2033. The structure is 72 ft (21.9 m) long and 28 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

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CarriesCR M-31
CrossesNinemile Creek
Location2E 2N of Minatare
RouteCounty Highway 324
CountyScotts Bluff County
StateNebraska
Coordinates41.844, -103.4615
Functional classRural Local

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.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.9 US tons
Inventory rating46.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length72 ft (21.9 m)
Longest span38 ft (11.6 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2003)
Projected traffic76 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR M-31 over Ninemile Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2024.

What condition is CR M-31 over Ninemile Creek 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 December 2024.

How much traffic does CR M-31 over Ninemile Creek carry?

About 45 vehicles per day (2003 count).

How long is CR M-31 over Ninemile Creek?

The structure is 72 ft (21.9 m) long with a longest span of 38 ft (11.6 m) and a deck 28 ft wide.

Who owns CR M-31 over Ninemile Creek?

It is owned by the County Highway Agency.