US Bridges

SE 570 over Rock CR Trib

Good

St. Clair County, Missouri · S 28 T 37 N R 24 W · Structure no. 36840

Built
2022
3 years old
Condition
Good
inspected December 2023
Type
Culvert
Steel
Length
36 ft
3 main spans
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

SE 570 over Rock CR Trib is a steel culvert carrying SE 570 over Rock CR Trib in St. Clair County, Missouri. It was built in 2022, so it is 3 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 24 by 2043. The structure is 36 ft (11 m) long and 17 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSE 570
CrossesRock CR Trib
LocationS 28 T 37 N R 24 W
RouteCounty Highway 352
CountySt. Clair County
StateMissouri
Coordinates37.93014, -93.58467
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span9 ft (2.7 m)
Deck width17 ft (5.1 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic24 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway 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 SE 570 over Rock CR Trib built?

It was built in 2022, making it 3 years old in 2025.

What condition is SE 570 over Rock CR Trib 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 December 2023.

How much traffic does SE 570 over Rock CR Trib carry?

About 20 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SE 570 over Rock CR Trib?

The structure is 36 ft (11 m) long with a longest span of 9 ft (2.7 m) and a deck 17 ft wide.

Who owns SE 570 over Rock CR Trib?

It is owned by the County Highway Agency.