US Bridges

ST Paul RD over Trib of Peruque CR

Poor

St. Charles County, Missouri · S 1 T 47 N R 2 E · Structure no. 14068

Built
1940
85 years old, rebuilt 2009
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
2 main spans
Daily traffic
1,720
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

ST Paul RD over Trib of Peruque CR is a steel stringer/multi-beam or girder carrying ST Paul RD over Trib of Peruque CR in St. Charles County, Missouri. It was built in 1940 and reconstructed in 2009, so it is 85 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,720 vehicles a day, roughly 10% of them trucks, projected to reach 2,666 by 2044. The structure is 32 ft (9.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesST Paul RD
CrossesTrib of Peruque CR
LocationS 1 T 47 N R 2 E
RouteCounty Highway 56
Coordinates38.8593, -90.74305
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating105.2 US tons
Inventory rating63.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length32 ft (9.8 m)
Longest span15 ft (4.7 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,720 (2024)
Projected traffic2,666 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$314,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST Paul RD over Trib of Peruque CR built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2009.

What condition is ST Paul RD over Trib of Peruque CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does ST Paul RD over Trib of Peruque CR carry?

About 1,720 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is ST Paul RD over Trib of Peruque CR?

The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.7 m) and a deck 31 ft wide.

Who owns ST Paul RD over Trib of Peruque CR?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.