US Bridges

CR 106 over Rock Creek

Good

Pine County, Minnesota · 0.5 MI N of JCT Csah 2 · Structure no. 95687

Built
1981
44 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
50 ft
3 main spans
Daily traffic
206
2021 count
Owner
County
County Highway Agency

About this bridge

CR 106 over Rock Creek is a concrete culvert carrying CR 106 over Rock Creek in Pine 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 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.

It carries about 206 vehicles a day, projected to reach 150 by 2041. The structure is 50 ft (15.1 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesCR 106
CrossesRock Creek
Location0.5 MI N of JCT Csah 2
RouteCounty Highway 106
Coordinates45.76482, -92.93038
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length50 ft (15.1 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic206 (2021)
Projected traffic150 by 2041
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 106 over Rock Creek built?

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

What condition is CR 106 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 106 over Rock Creek carry?

About 206 vehicles per day (2021 count).

How long is CR 106 over Rock Creek?

The structure is 50 ft (15.1 m) long with a longest span of 13 ft (3.9 m).

Who owns CR 106 over Rock Creek?

It is owned by the County Highway Agency.