US Bridges

Mo 141 S over Maryville CR

Fair

St. Louis County, Missouri · S 109 T 45 N R 5 E · Structure no. 33815

Built
2010
15 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
29,021
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 141 S over Maryville CR is a concrete continuous culvert carrying Mo 141 S over Maryville CR in St. Louis County, Missouri. It was built in 2010, so it is 15 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 5 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 29,021 vehicles a day, roughly 5% of them trucks, projected to reach 36,276 by 2044. The structure is 27 ft (8.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMo 141 S
CrossesMaryville CR
LocationS 109 T 45 N R 5 E
RouteState Highway 141
CountySt. Louis County
StateMissouri
Coordinates38.65926, -90.50471
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.2 US tons
Inventory rating57.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length27 ft (8.3 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,021 (2024)
Projected traffic36,276 by 2044
Trucks5%
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 Mo 141 S over Maryville CR built?

It was built in 2010, making it 15 years old in 2025.

What condition is Mo 141 S over Maryville 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 141 S over Maryville CR carry?

About 29,021 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Mo 141 S over Maryville CR?

The structure is 27 ft (8.3 m) long with a longest span of 13 ft (4 m).

Who owns Mo 141 S over Maryville CR?

It is owned by the State Highway Agency.