US Bridges

Rt Oo E over Richland CR

Fair

Gasconade County, Missouri · S 8 T 44 N R 6 W · Structure no. 7799

Built
1954
71 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
82
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Oo E over Richland CR is a concrete continuous culvert carrying Rt Oo E over Richland CR in Gasconade County, Missouri. It was built in 1954, so it is 71 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 82 vehicles a day, roughly 7% of them trucks, projected to reach 107 by 2044. The structure is 38 ft (11.5 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesRt Oo E
CrossesRichland CR
LocationS 8 T 44 N R 6 W
RouteState Highway 0OO
Coordinates38.58331, -91.62752
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.6 US tons
Inventory rating28.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 10
Structure length38 ft (11.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82 (2024)
Projected traffic107 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Rt Oo E over Richland CR built?

It was built in 1954, making it 71 years old in 2025.

What condition is Rt Oo E over Richland CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Rt Oo E over Richland CR carry?

About 82 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Rt Oo E over Richland CR?

The structure is 38 ft (11.5 m) long with a longest span of 12 ft (3.7 m).

Who owns Rt Oo E over Richland CR?

It is owned by the State Highway Agency.