US Bridges

Wildhorse Pkwy DR over Bonhomme CR

FairPosted for load

St. Louis County, Missouri · S 479 T 45 N R 3 E · Structure no. 14935

Built
1989
36 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
213 ft
3 main spans
Daily traffic
3,556
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Wildhorse Pkwy DR over Bonhomme CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Wildhorse Pkwy DR over Bonhomme CR in St. Louis County, Missouri. It was built in 1989, so it is 36 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 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 3,556 vehicles a day, roughly 10% of them trucks, projected to reach 4,801 by 2043. The structure is 213 ft (64.9 m) long and 48 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesWildhorse Pkwy DR
CrossesBonhomme CR
LocationS 479 T 45 N R 3 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.64981, -90.62956
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating59.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length213 ft (64.9 m)
Longest span68 ft (20.7 m)
Deck width48 ft (14.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,556 (2023)
Projected traffic4,801 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Wildhorse Pkwy DR over Bonhomme CR built?

It was built in 1989, making it 36 years old in 2025.

What condition is Wildhorse Pkwy DR over Bonhomme 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 December 2023.

How much traffic does Wildhorse Pkwy DR over Bonhomme CR carry?

About 3,556 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Wildhorse Pkwy DR over Bonhomme CR?

The structure is 213 ft (64.9 m) long with a longest span of 68 ft (20.7 m) and a deck 48 ft wide.

Who owns Wildhorse Pkwy DR over Bonhomme CR?

It is owned by the City or Municipal Highway Agency.