US Bridges

Csah 36 over Little Pine River

FairPosted for load

Crow Wing County, Minnesota · 1.5 MI W of JCT TH 6 · Structure no. 18514

Built
1981
44 years old
Condition
Fair
inspected September 2024
Type
Slab
Wood or Timber
Length
78 ft
3 main spans
Daily traffic
410
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 36 over Little Pine River is a wood or timber slab carrying Csah 36 over Little Pine River in Crow Wing 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 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 410 vehicles a day, projected to reach 325 by 2039. The structure is 78 ft (23.8 m) long and 34 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesCsah 36
CrossesLittle Pine River
Location1.5 MI W of JCT TH 6
RouteCounty Highway 36
Coordinates46.65524, -93.98036
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating48.2 US tons
Inventory rating33.5 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span26 ft (7.9 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2019)
Projected traffic325 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 36 over Little Pine River built?

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

What condition is Csah 36 over Little Pine 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 September 2024.

How much traffic does Csah 36 over Little Pine River carry?

About 410 vehicles per day (2019 count).

How long is Csah 36 over Little Pine River?

The structure is 78 ft (23.8 m) long with a longest span of 26 ft (7.9 m) and a deck 34 ft wide.

Who owns Csah 36 over Little Pine River?

It is owned by the County Highway Agency.