US Bridges

Ut 900 over Little Fork River

PoorPosted for load

St. Louis County, Minnesota · 0.2 MI S of JCT Csah 115 · Structure no. 69558

Built
1982
43 years old
Condition
Poor
inspected October 2024
Type
Slab
Wood or Timber
Length
69 ft
3 main spans
Daily traffic
5
2011 count
Owner
County
County Highway Agency

About this bridge

Ut 900 over Little Fork River is a wood or timber slab carrying Ut 900 over Little Fork River in St. Louis County, Minnesota. It was built in 1982, so it is 43 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 5 vehicles a day, projected to reach 5 by 2039. The structure is 69 ft (20.9 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUt 900
CrossesLittle Fork River
Location0.2 MI S of JCT Csah 115
RouteCounty Highway 900
Coordinates47.84406, -92.54773
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.8 US tons
Inventory rating35.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length69 ft (20.9 m)
Longest span32 ft (9.8 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2011)
Projected traffic5 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$850 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ut 900 over Little Fork River built?

It was built in 1982, making it 43 years old in 2025.

What condition is Ut 900 over Little Fork River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Ut 900 over Little Fork River carry?

About 5 vehicles per day (2011 count).

How long is Ut 900 over Little Fork River?

The structure is 69 ft (20.9 m) long with a longest span of 32 ft (9.8 m) and a deck 26 ft wide.

Who owns Ut 900 over Little Fork River?

It is owned by the County Highway Agency.