US Bridges

Mo 156 E over Lit Grassy CR

Fair

Lewis County, Missouri · S 13 T 60 N R 8 W · Structure no. 9632

Built
1947
78 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
633
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 156 E over Lit Grassy CR is a concrete continuous culvert carrying Mo 156 E over Lit Grassy CR in Lewis County, Missouri. It was built in 1947, so it is 78 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 633 vehicles a day, roughly 15% of them trucks, projected to reach 918 by 2044. The structure is 23 ft (7 m) long and 26 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesMo 156 E
CrossesLit Grassy CR
LocationS 13 T 60 N R 8 W
RouteState Highway 156
Coordinates40.00023, -91.74278
Functional classRural Major Collector

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 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.6 US tons
Inventory rating27.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic633 (2024)
Projected traffic918 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 156 E over Lit Grassy CR built?

It was built in 1947, making it 78 years old in 2025.

What condition is Mo 156 E over Lit Grassy 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 156 E over Lit Grassy CR carry?

About 633 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is Mo 156 E over Lit Grassy CR?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns Mo 156 E over Lit Grassy CR?

It is owned by the State Highway Agency.