US Bridges

Hepperman RD over Peruque CR

Good

St. Charles County, Missouri · S 35 T 47 N R 1 E · Structure no. 21674

Built
1998
27 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
184 ft
3 main spans
Daily traffic
2,804
2024 count
Owner
County
County Highway Agency

About this bridge

Hepperman RD over Peruque CR is a prestressed concrete stringer/multi-beam or girder carrying Hepperman RD over Peruque CR in St. Charles County, Missouri. It was built in 1998, so it is 27 years old, younger 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,804 vehicles a day, roughly 10% of them trucks, projected to reach 4,346 by 2044. The structure is 184 ft (56.1 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesHepperman RD
CrossesPeruque CR
LocationS 35 T 47 N R 1 E
RouteCounty Highway 318
Coordinates38.79218, -90.88594
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating84.3 US tons
Inventory rating51.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length184 ft (56.1 m)
Longest span61 ft (18.6 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,804 (2024)
Projected traffic4,346 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Hepperman RD over Peruque CR built?

It was built in 1998, making it 27 years old in 2025.

What condition is Hepperman RD over Peruque CR 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 February 2024.

How much traffic does Hepperman RD over Peruque CR carry?

About 2,804 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Hepperman RD over Peruque CR?

The structure is 184 ft (56.1 m) long with a longest span of 61 ft (18.6 m) and a deck 35 ft wide.

Who owns Hepperman RD over Peruque CR?

It is owned by the County Highway Agency.