US Bridges

Csah 25 over White Earth River

Good

Mahnomen County, Minnesota · 0.8 MI S of JCT TH 200 · Structure no. L9894

Built
1979
46 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
435
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 25 over White Earth River is a concrete culvert carrying Csah 25 over White Earth River in Mahnomen County, Minnesota. It was built in 1979, so it is 46 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 435 vehicles a day, projected to reach 435 by 2039. The structure is 45 ft (13.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 25
CrossesWhite Earth River
Location0.8 MI S of JCT TH 200
RouteCounty Highway 25
Coordinates47.3146, -95.93335
Functional classRural Minor 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 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 alignment6: Equal to present minimum criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.6 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 traffic435 (2016)
Projected traffic435 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 25 over White Earth River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Csah 25 over White Earth 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 2023.

How much traffic does Csah 25 over White Earth River carry?

About 435 vehicles per day (2016 count).

How long is Csah 25 over White Earth River?

The structure is 45 ft (13.6 m) long with a longest span of 13 ft (3.9 m).

Who owns Csah 25 over White Earth River?

It is owned by the County Highway Agency.