US Bridges

Mo 5 S over Brennan CR

Fair

Laclede County, Missouri · S 9 T 36 N R 16 W · Structure no. 3144

Built
1981
44 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
9,161
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 5 S over Brennan CR is a concrete continuous culvert carrying Mo 5 S over Brennan CR in Laclede County, Missouri. It was built in 1981, so it is 44 years old, younger 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 9,161 vehicles a day, roughly 22% of them trucks, projected to reach 16,490 by 2044. The structure is 26 ft (8 m) long. If it were closed, the detour would be 36 mi (58 km).

Location

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CarriesMo 5 S
CrossesBrennan CR
LocationS 9 T 36 N R 16 W
RouteState Highway 5
CountyLaclede County
StateMissouri
Coordinates37.87591, -92.70311
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 spans2
Design loadH 20
Structure length26 ft (8 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,161 (2024)
Projected traffic16,490 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 5 S over Brennan CR built?

It was built in 1981, making it 44 years old in 2025.

What condition is Mo 5 S over Brennan 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 August 2023.

How much traffic does Mo 5 S over Brennan CR carry?

About 9,161 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is Mo 5 S over Brennan CR?

The structure is 26 ft (8 m) long with a longest span of 11 ft (3.4 m).

Who owns Mo 5 S over Brennan CR?

It is owned by the State Highway Agency.