US Bridges

County RD 1030 over Trib of White Oak

FairPosted for load

Lawrence County, Missouri · S 20 T 29 N R 28 W · Structure no. 12483

Built
1930
95 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete Continuous
Length
71 ft
2 main spans
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 1030 over Trib of White Oak is a concrete continuous tee beam carrying County RD 1030 over Trib of White Oak in Lawrence County, Missouri. It was built in 1930, so it is 95 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. Its operating status is: posted for load restriction.

It carries about 40 vehicles a day, roughly 10% of them trucks, projected to reach 56 by 2043. The structure is 71 ft (21.6 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty RD 1030
CrossesTrib of White Oak
LocationS 20 T 29 N R 28 W
RouteCounty Highway 11
CountyLawrence County
StateMissouri
Coordinates37.21782, -94.00085
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.8 US tons
Inventory rating14.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length71 ft (21.6 m)
Longest span35 ft (10.7 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic56 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 1030 over Trib of White Oak built?

It was built in 1930, making it 95 years old in 2025.

What condition is County RD 1030 over Trib of White Oak 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 1030 over Trib of White Oak carry?

About 40 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 1030 over Trib of White Oak?

The structure is 71 ft (21.6 m) long with a longest span of 35 ft (10.7 m) and a deck 26 ft wide.

Who owns County RD 1030 over Trib of White Oak?

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