US Bridges

Csah 11 over White Earth River

FairPosted for load

Mahnomen County, Minnesota · 0.7 MI E of JCT TH 59 · Structure no. 44501

Built
1966
59 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
51 ft
1 main span
Daily traffic
335
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 11 over White Earth River is a wood or timber stringer/multi-beam or girder carrying Csah 11 over White Earth River in Mahnomen County, Minnesota. It was built in 1966, so it is 59 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 335 vehicles a day, projected to reach 335 by 2039. The structure is 51 ft (15.5 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCsah 11
CrossesWhite Earth River
Location0.7 MI E of JCT TH 59
RouteCounty Highway 11
Coordinates47.2818, -95.91344
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.9 US tons
Inventory rating22 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span49 ft (14.9 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic335 (2016)
Projected traffic335 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 11 over White Earth River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Csah 11 over White Earth River 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 August 2023.

How much traffic does Csah 11 over White Earth River carry?

About 335 vehicles per day (2016 count).

How long is Csah 11 over White Earth River?

The structure is 51 ft (15.5 m) long with a longest span of 49 ft (14.9 m) and a deck 30 ft wide.

Who owns Csah 11 over White Earth River?

It is owned by the County Highway Agency.