US Bridges

Csah 36 over Pine River

Fair

Crow Wing County, Minnesota · 0.5 MI S of JCT Csah 37 · Structure no. 18518

Built
1984
41 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
107 ft
1 main span
Daily traffic
810
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 36 over Pine River is a prestressed concrete stringer/multi-beam or girder carrying Csah 36 over Pine River in Crow Wing County, Minnesota. It was built in 1984, so it is 41 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.

It carries about 810 vehicles a day, projected to reach 710 by 2039. The structure is 107 ft (32.7 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 36
CrossesPine River
Location0.5 MI S of JCT Csah 37
RouteCounty Highway 36
Coordinates46.65353, -94.09792
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79.9 US tons
Inventory rating44.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length107 ft (32.7 m)
Longest span105 ft (31.9 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic810 (2019)
Projected traffic710 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Pine River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Csah 36 over 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 October 2024.

How much traffic does Csah 36 over Pine River carry?

About 810 vehicles per day (2019 count).

How long is Csah 36 over Pine River?

The structure is 107 ft (32.7 m) long with a longest span of 105 ft (31.9 m) and a deck 42 ft wide.

Who owns Csah 36 over Pine River?

It is owned by the County Highway Agency.