US Bridges

CR 108 over Buffalo River

Good

Clay County, Minnesota · 1.0 MI W of JCT Csah 5 · Structure no. 14517

Built
1993
32 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
228 ft
3 main spans
Daily traffic
100
2013 count
Owner
County
County Highway Agency

About this bridge

CR 108 over Buffalo River is a prestressed concrete stringer/multi-beam or girder carrying CR 108 over Buffalo River in Clay County, Minnesota. It was built in 1993, so it is 32 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, projected to reach 100 by 2039. The structure is 228 ft (69.4 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCR 108
CrossesBuffalo River
Location1.0 MI W of JCT Csah 5
RouteCounty Highway 108
Coordinates47.04983, -96.75375
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.1 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length228 ft (69.4 m)
Longest span74 ft (22.6 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2013)
Projected traffic100 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 CR 108 over Buffalo River built?

It was built in 1993, making it 32 years old in 2025.

What condition is CR 108 over Buffalo 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 November 2024.

How much traffic does CR 108 over Buffalo River carry?

About 100 vehicles per day (2013 count).

How long is CR 108 over Buffalo River?

The structure is 228 ft (69.4 m) long with a longest span of 74 ft (22.6 m) and a deck 35 ft wide.

Who owns CR 108 over Buffalo River?

It is owned by the County Highway Agency.