US Bridges

T 100 over Spring Creek

Good

Mahnomen County, Minnesota · 1.1 MI S of JCT Csah 5 · Structure no. 95384

Built
1981
44 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
25
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 100 over Spring Creek is a concrete culvert carrying T 100 over Spring Creek in Mahnomen County, Minnesota. It was built in 1981, so it is 44 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 25 vehicles a day, projected to reach 25 by 2029. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesT 100
CrossesSpring Creek
Location1.1 MI S of JCT Csah 5
RouteCounty Highway 100
Coordinates47.26261, -96.06122
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (1986)
Projected traffic25 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township 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 T 100 over Spring Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is T 100 over Spring 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 September 2024.

How much traffic does T 100 over Spring Creek carry?

About 25 vehicles per day (1986 count).

How long is T 100 over Spring Creek?

The structure is 29 ft (8.8 m) long with a longest span of 13 ft (3.9 m).

Who owns T 100 over Spring Creek?

It is owned by the Town or Township Highway Agency and maintained by the County Highway Agency.