US Bridges

T 1008 over Grand Marais River

Good

Polk County, Minnesota · 0.6 MI N of JCT Csah 17 · Structure no. 95991

Built
1986
39 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
35
1973 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 1008 over Grand Marais River is a concrete culvert carrying T 1008 over Grand Marais River in Polk County, Minnesota. It was built in 1986, so it is 39 years old, older 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 35 vehicles a day, projected to reach 35 by 2029. The structure is 34 ft (10.5 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 1008
CrossesGrand Marais River
Location0.6 MI N of JCT Csah 17
RouteCounty Highway 1008
Coordinates47.92798, -96.93385
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 inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length34 ft (10.5 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (1973)
Projected traffic35 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T 1008 over Grand Marais River built?

It was built in 1986, making it 39 years old in 2025.

What condition is T 1008 over Grand Marais River 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 October 2024.

How much traffic does T 1008 over Grand Marais River carry?

About 35 vehicles per day (1973 count).

How long is T 1008 over Grand Marais River?

The structure is 34 ft (10.5 m) long with a longest span of 14 ft (4.3 m).

Who owns T 1008 over Grand Marais River?

It is owned by the Town or Township Highway Agency.