US Bridges

CR 105 over Rock Creek

GoodPosted for load

Pine County, Minnesota · 0.5 MI E of JCT CR 106 · Structure no. 58519

Built
1980
45 years old
Condition
Good
inspected October 2023
Type
Slab
Wood or Timber
Length
96 ft
3 main spans
Daily traffic
172
2021 count
Owner
County
County Highway Agency

About this bridge

CR 105 over Rock Creek is a wood or timber slab carrying CR 105 over Rock Creek in Pine County, Minnesota. It was built in 1980, so it is 45 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 172 vehicles a day, projected to reach 150 by 2041. The structure is 96 ft (29.3 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 105
CrossesRock Creek
Location0.5 MI E of JCT CR 106
RouteCounty Highway 105
Coordinates45.72998, -92.91972
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.2 US tons
Inventory rating39.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span32 ft (9.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic172 (2021)
Projected traffic150 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 105 over Rock Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is CR 105 over Rock Creek 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 October 2023.

How much traffic does CR 105 over Rock Creek carry?

About 172 vehicles per day (2021 count).

How long is CR 105 over Rock Creek?

The structure is 96 ft (29.3 m) long with a longest span of 32 ft (9.8 m) and a deck 30 ft wide.

Who owns CR 105 over Rock Creek?

It is owned by the County Highway Agency.