US Bridges

Flinthill RD 077 over Camp CR

Good

Ralls County, Missouri · S 30 T 56 N R 4 W · Structure no. 14832

Built
1980
45 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
150
2023 count
Owner
County
County Highway Agency

About this bridge

Flinthill RD 077 over Camp CR is a prestressed concrete tee beam carrying Flinthill RD 077 over Camp CR in Ralls County, Missouri. It was built in 1980, so it is 45 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 150 vehicles a day, roughly 10% of them trucks, projected to reach 188 by 2043. The structure is 46 ft (14 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFlinthill RD 077
CrossesCamp CR
LocationS 30 T 56 N R 4 W
RouteCounty Highway 77
Coordinates39.62406, -91.38117
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadOther
Structure length46 ft (14 m)
Longest span41 ft (12.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic188 by 2043
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 Flinthill RD 077 over Camp CR built?

It was built in 1980, making it 45 years old in 2025.

What condition is Flinthill RD 077 over Camp 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 June 2024.

How much traffic does Flinthill RD 077 over Camp CR carry?

About 150 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Flinthill RD 077 over Camp CR?

The structure is 46 ft (14 m) long with a longest span of 41 ft (12.5 m) and a deck 24 ft wide.

Who owns Flinthill RD 077 over Camp CR?

It is owned by the County Highway Agency.