US Bridges

Mo 13 S over Br Dry Fork CR

Fair

Polk County, Missouri · S 18 T 34 N R 23 W · Structure no. 51

Built
1958
67 years old, rebuilt 2004
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
53 ft
3 main spans
Daily traffic
14,992
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 13 S over Br Dry Fork CR is a concrete continuous culvert carrying Mo 13 S over Br Dry Fork CR in Polk County, Missouri. It was built in 1958 and reconstructed in 2004, so it is 67 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 14,992 vehicles a day, roughly 28% of them trucks, projected to reach 26,236 by 2044. The structure is 53 ft (16.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMo 13 S
CrossesBr Dry Fork CR
LocationS 18 T 34 N R 23 W
RouteState Highway 13
Coordinates37.68389, -93.49897
Functional classRural Principal Arterial - Other

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 20
Structure length53 ft (16.3 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 traffic14,992 (2024)
Projected traffic26,236 by 2044
Trucks28%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 Mo 13 S over Br Dry Fork CR built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2004.

What condition is Mo 13 S over Br Dry Fork 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 November 2023.

How much traffic does Mo 13 S over Br Dry Fork CR carry?

About 14,992 vehicles per day (2024 count), of which roughly 28% are trucks.

How long is Mo 13 S over Br Dry Fork CR?

The structure is 53 ft (16.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Mo 13 S over Br Dry Fork CR?

It is owned by the State Highway Agency.