US Bridges

Grand DR over Rvr Des Peres Lago

GoodPosted for load

St. Louis city, Missouri · S 1201 T 45 N R 6 E · Structure no. 14193

Built
1935
90 years old, rebuilt 2024
Condition
Good
inspected October 2024
Type
Arch - Deck
Steel
Length
76 ft
1 main span
Daily traffic
5,000
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Grand DR over Rvr Des Peres Lago is a steel arch - deck carrying Grand DR over Rvr Des Peres Lago in St. Louis city, Missouri. It was built in 1935 and reconstructed in 2024, so it is 90 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 5,000 vehicles a day, roughly 5% of them trucks, projected to reach 6,750 by 2043. The structure is 76 ft (23.1 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesGrand DR
CrossesRvr Des Peres Lago
LocationS 1201 T 45 N R 6 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.64291, -90.27526
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckClosed grating
Main spans1
Design loadH 20
Structure length76 ft (23.1 m)
Longest span72 ft (21.9 m)
Deck width40 ft (12.3 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2023)
Projected traffic6,750 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byLocal Park, Forest, or Reservation 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 Grand DR over Rvr Des Peres Lago built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 2024.

What condition is Grand DR over Rvr Des Peres Lago in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Grand DR over Rvr Des Peres Lago carry?

About 5,000 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Grand DR over Rvr Des Peres Lago?

The structure is 76 ft (23.1 m) long with a longest span of 72 ft (21.9 m) and a deck 40 ft wide.

Who owns Grand DR over Rvr Des Peres Lago?

It is owned by the City or Municipal Highway Agency and maintained by the Local Park, Forest, or Reservation Agency.