US Bridges

Bighorn RD over Trib of Mineral SP

Good

Mercer County, Missouri · S 2 T 66 N R 24 W · Structure no. 14413

Built
1997
28 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
49 ft
1 main span
Daily traffic
30
2024 count
Owner
County
County Highway Agency

About this bridge

Bighorn RD over Trib of Mineral SP is a steel stringer/multi-beam or girder carrying Bighorn RD over Trib of Mineral SP in Mercer County, Missouri. It was built in 1997, so it is 28 years old, younger than the Missouri average of 45.1 years.

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

It carries about 30 vehicles a day, roughly 25% of them trucks, projected to reach 33 by 2044. The structure is 49 ft (14.9 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesBighorn RD
CrossesTrib of Mineral SP
LocationS 2 T 66 N R 24 W
RouteCounty Highway 67
CountyMercer County
StateMissouri
Coordinates40.54563, -93.57499
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.7 US tons
Inventory rating18.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length49 ft (14.9 m)
Longest span48 ft (14.6 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic33 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Bighorn RD over Trib of Mineral SP built?

It was built in 1997, making it 28 years old in 2025.

What condition is Bighorn RD over Trib of Mineral SP 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 2023.

How much traffic does Bighorn RD over Trib of Mineral SP carry?

About 30 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is Bighorn RD over Trib of Mineral SP?

The structure is 49 ft (14.9 m) long with a longest span of 48 ft (14.6 m) and a deck 20 ft wide.

Who owns Bighorn RD over Trib of Mineral SP?

It is owned by the County Highway Agency.