US Bridges

805th RD over Mira Creek

Good

Valley County, Nebraska · .6E North Loup · Structure no. C008833620

Built
1984
41 years old, rebuilt 2010
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
54 ft
2 main spans
Daily traffic
40
2003 count
Owner
County
County Highway Agency

About this bridge

805th RD over Mira Creek is a concrete stringer/multi-beam or girder carrying 805th RD over Mira Creek in Valley County, Nebraska. It was built in 1984 and reconstructed in 2010, so it is 41 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 40 vehicles a day, roughly 10% of them trucks, projected to reach 52 by 2033. The structure is 54 ft (16.5 m) long and 26 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Carries805th RD
CrossesMira Creek
Location.6E North Loup
RouteCounty Highway 336
Coordinates41.4952, -98.7514
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
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.9 US tons
Inventory rating32 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length54 ft (16.5 m)
Longest span32 ft (9.8 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2003)
Projected traffic52 by 2033
Trucks10%
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 805th RD over Mira Creek built?

It was built in 1984, making it 41 years old in 2025. It was reconstructed in 2010.

What condition is 805th RD over Mira 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 June 2024.

How much traffic does 805th RD over Mira Creek carry?

About 40 vehicles per day (2003 count), of which roughly 10% are trucks.

How long is 805th RD over Mira Creek?

The structure is 54 ft (16.5 m) long with a longest span of 32 ft (9.8 m) and a deck 26 ft wide.

Who owns 805th RD over Mira Creek?

It is owned by the County Highway Agency.