US Bridges

Csah 12 over Gateway Trail

Fair

Washington County, Minnesota · 0.2 MI W of JCT Csah 9 · Structure no. 82525

Built
2006
19 years old
Condition
Fair
inspected October 2022
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
9,000
2018 count
Owner
Local
Local Park, Forest, or Reservation Agency

About this bridge

Csah 12 over Gateway Trail is a concrete culvert carrying Csah 12 over Gateway Trail in Washington County, Minnesota. It was built in 2006, so it is 19 years old, younger than the Minnesota average of 38.5 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.

It carries about 9,000 vehicles a day, projected to reach 9,800 by 2038. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCsah 12
CrossesGateway Trail
Location0.2 MI W of JCT Csah 9
RouteCounty Highway 12
CountyWashington County
StateMinnesota
Coordinates45.05771, -92.92809
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length20 ft (6.2 m)
Longest span20 ft (6.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,000 (2018)
Projected traffic9,800 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesPedestrian / bicycle
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerLocal Park, Forest, or Reservation Agency
Maintained byLocal Park, Forest, or Reservation Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Csah 12 over Gateway Trail built?

It was built in 2006, making it 19 years old in 2025.

What condition is Csah 12 over Gateway Trail 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 October 2022.

How much traffic does Csah 12 over Gateway Trail carry?

About 9,000 vehicles per day (2018 count).

How long is Csah 12 over Gateway Trail?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.2 m).

Who owns Csah 12 over Gateway Trail?

It is owned by the Local Park, Forest, or Reservation Agency.