US Bridges

Gravois RD over CR to Meramec Rvr

FairPosted for load

St. Louis County, Missouri · S 3116 T 44 N R 5 E · Structure no. 23609

Built
1925
100 years old, rebuilt 1991
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
36 ft
2 main spans
Daily traffic
9,270
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Gravois RD over CR to Meramec Rvr is a concrete continuous culvert carrying Gravois RD over CR to Meramec Rvr in St. Louis County, Missouri. It was built in 1925 and reconstructed in 1991, so it is 100 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. Its operating status is: posted for load restriction.

It carries about 9,270 vehicles a day, roughly 2% of them trucks, projected to reach 12,515 by 2043. The structure is 36 ft (11 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesGravois RD
CrossesCR to Meramec Rvr
LocationS 3116 T 44 N R 5 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.51381, -90.42599
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating74.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length36 ft (11 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,270 (2023)
Projected traffic12,515 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Gravois RD over CR to Meramec Rvr built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1991.

What condition is Gravois RD over CR to Meramec Rvr 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 Gravois RD over CR to Meramec Rvr carry?

About 9,270 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Gravois RD over CR to Meramec Rvr?

The structure is 36 ft (11 m) long with a longest span of 15 ft (4.6 m).

Who owns Gravois RD over CR to Meramec Rvr?

It is owned by the City or Municipal Highway Agency.