US Bridges

County RD 1150 over Trib Spring Rvr

FairPosted for load

Lawrence County, Missouri · S 28 T 26 N R 26 W · Structure no. 25218

Built
1900
125 years old, rebuilt 1930
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
25 ft
2 main spans
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 1150 over Trib Spring Rvr is a concrete slab carrying County RD 1150 over Trib Spring Rvr in Lawrence County, Missouri. It was built in 1900 and reconstructed in 1930, so it is 125 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. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 280 by 2043. The structure is 25 ft (7.6 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCounty RD 1150
CrossesTrib Spring Rvr
LocationS 28 T 26 N R 26 W
RouteCounty Highway 692
Coordinates36.93513, -93.79163
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
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 rating14.9 US tons
Inventory rating8.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length25 ft (7.6 m)
Longest span10 ft (3 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic280 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 byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$255,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 1150 over Trib Spring Rvr built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1930.

What condition is County RD 1150 over Trib Spring Rvr 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 March 2023.

How much traffic does County RD 1150 over Trib Spring Rvr carry?

About 200 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 1150 over Trib Spring Rvr?

The structure is 25 ft (7.6 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns County RD 1150 over Trib Spring Rvr?

It is owned by the County Highway Agency and maintained by the Other Local Agency.