US Bridges

Hunt Mill RD over Br of Moniteau CR

Good

Cooper County, Missouri · S 1 T 46 N R 16 W · Structure no. 21889

Built
1993
32 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
67 ft
1 main span
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

Hunt Mill RD over Br of Moniteau CR is a steel stringer/multi-beam or girder carrying Hunt Mill RD over Br of Moniteau CR in Cooper County, Missouri. It was built in 1993, so it is 32 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 65 by 2044. The structure is 67 ft (20.4 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesHunt Mill RD
CrossesBr of Moniteau CR
LocationS 1 T 46 N R 16 W
RouteCounty Highway 329
Coordinates38.77433, -92.62539
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.
Superstructure8 Very GoodNo problems noted.
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 above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.4 US tons
Inventory rating48.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length67 ft (20.4 m)
Longest span66 ft (20.1 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic65 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Hunt Mill RD over Br of Moniteau CR built?

It was built in 1993, making it 32 years old in 2025.

What condition is Hunt Mill RD over Br of Moniteau CR 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 Hunt Mill RD over Br of Moniteau CR carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Hunt Mill RD over Br of Moniteau CR?

The structure is 67 ft (20.4 m) long with a longest span of 66 ft (20.1 m) and a deck 20 ft wide.

Who owns Hunt Mill RD over Br of Moniteau CR?

It is owned by the County Highway Agency.