US Bridges

Rt O S over Terrarin CR

Fair

Boone County, Missouri · S 22 T 48 N R 14 W · Structure no. 9787

Built
1947
78 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
1,374
2024 count
Owner
State
State Highway Agency

About this bridge

Rt O S over Terrarin CR is a concrete continuous culvert carrying Rt O S over Terrarin CR in Boone County, Missouri. It was built in 1947, so it is 78 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 6 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 1,374 vehicles a day, roughly 11% of them trucks, projected to reach 2,405 by 2044. The structure is 25 ft (7.5 m) long and 37 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesRt O S
CrossesTerrarin CR
LocationS 22 T 48 N R 14 W
RouteState Highway 0O
CountyBoone County
StateMissouri
Coordinates38.93475, -92.4871
Functional classRural Major 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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width37 ft (11.4 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,374 (2024)
Projected traffic2,405 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 O S over Terrarin CR built?

It was built in 1947, making it 78 years old in 2025.

What condition is Rt O S over Terrarin 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 2023.

How much traffic does Rt O S over Terrarin CR carry?

About 1,374 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt O S over Terrarin CR?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m) and a deck 37 ft wide.

Who owns Rt O S over Terrarin CR?

It is owned by the State Highway Agency.