US Bridges

Mo 161 S over Clear CR

Fair

Montgomery County, Missouri · S 6 T 48 N R 5 W · Structure no. 9046

Built
1941
84 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
2,752
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 161 S over Clear CR is a concrete continuous culvert carrying Mo 161 S over Clear CR in Montgomery County, Missouri. It was built in 1941, so it is 84 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 2,752 vehicles a day, roughly 12% of them trucks, projected to reach 4,266 by 2044. The structure is 25 ft (7.7 m) long and 29 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesMo 161 S
CrossesClear CR
LocationS 6 T 48 N R 5 W
RouteState Highway 161
CountyMontgomery County
StateMissouri
Coordinates38.96924, -91.51186
Functional classRural Minor Arterial

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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.7 US tons
Inventory rating25.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length25 ft (7.7 m)
Longest span10 ft (3 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,752 (2024)
Projected traffic4,266 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$306,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 161 S over Clear CR built?

It was built in 1941, making it 84 years old in 2025.

What condition is Mo 161 S over Clear 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 September 2024.

How much traffic does Mo 161 S over Clear CR carry?

About 2,752 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Mo 161 S over Clear CR?

The structure is 25 ft (7.7 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns Mo 161 S over Clear CR?

It is owned by the State Highway Agency.