US Bridges

Csah 36 over Amity Creek

Good

St. Louis County, Minnesota · 0.1 MI N of JCT Csah 9 · Structure no. 69J14

Built
2001
24 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
1,231
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 36 over Amity Creek is a concrete culvert carrying Csah 36 over Amity Creek in St. Louis County, Minnesota. It was built in 2001, so it is 24 years old, younger than the Minnesota average of 38.5 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 1,231 vehicles a day, roughly 5% of them trucks, projected to reach 1,650 by 2042. The structure is 22 ft (6.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCsah 36
CrossesAmity Creek
Location0.1 MI N of JCT Csah 9
RouteCounty Highway 36
Coordinates46.86624, -92.09026
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length22 ft (6.6 m)
Longest span8 ft (2.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,231 (2022)
Projected traffic1,650 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Csah 36 over Amity Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Csah 36 over Amity Creek 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 November 2024.

How much traffic does Csah 36 over Amity Creek carry?

About 1,231 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Csah 36 over Amity Creek?

The structure is 22 ft (6.6 m) long with a longest span of 8 ft (2.5 m).

Who owns Csah 36 over Amity Creek?

It is owned by the County Highway Agency.