US Bridges

US 61 S over Unnamed CR

Fair

Clark County, Missouri · S 32 T 64 N R 6 W · Structure no. 31586

Built
2006
19 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
30 ft
3 main spans
Daily traffic
12,060
2024 count
Owner
State
State Highway Agency

About this bridge

US 61 S over Unnamed CR is a concrete continuous culvert carrying US 61 S over Unnamed CR in Clark County, Missouri. It was built in 2006, so it is 19 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 12,060 vehicles a day, roughly 46% of them trucks, projected to reach 22,914 by 2044. The structure is 30 ft (9 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 61 S
CrossesUnnamed CR
LocationS 32 T 64 N R 6 W
RouteU.S. Route 61
Coordinates40.30503, -91.57358
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 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating74.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length30 ft (9 m)
Longest span10 ft (2.9 m)
Deck width44 ft (13.4 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,060 (2024)
Projected traffic22,914 by 2044
Trucks46%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway 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 US 61 S over Unnamed CR built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 61 S over Unnamed 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 US 61 S over Unnamed CR carry?

About 12,060 vehicles per day (2024 count), of which roughly 46% are trucks.

How long is US 61 S over Unnamed CR?

The structure is 30 ft (9 m) long with a longest span of 10 ft (2.9 m) and a deck 44 ft wide.

Who owns US 61 S over Unnamed CR?

It is owned by the State Highway Agency.