US Bridges

CR 55 over Little Rock Creek

Good

Benton County, Minnesota · 0.6 MI NW of JCT TH 10 · Structure no. 05533

Built
2002
23 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
442 ft
4 main spans
Daily traffic
840
2011 count
Owner
County
County Highway Agency

About this bridge

CR 55 over Little Rock Creek is a prestressed concrete stringer/multi-beam or girder carrying CR 55 over Little Rock Creek in Benton County, Minnesota. It was built in 2002, so it is 23 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 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 840 vehicles a day, projected to reach 840 by 2039. The structure is 442 ft (134.6 m) long and 39 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCR 55
CrossesLittle Rock Creek
Location0.6 MI NW of JCT TH 10
RouteCounty Highway 55
Coordinates45.68147, -94.18375
Functional classUrban 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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating81.7 US tons
Inventory rating47.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length442 ft (134.6 m)
Longest span110 ft (33.4 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2011)
Projected traffic840 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 55 over Little Rock Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is CR 55 over Little 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 September 2024.

How much traffic does CR 55 over Little Rock Creek carry?

About 840 vehicles per day (2011 count).

How long is CR 55 over Little Rock Creek?

The structure is 442 ft (134.6 m) long with a longest span of 110 ft (33.4 m) and a deck 39 ft wide.

Who owns CR 55 over Little Rock Creek?

It is owned by the County Highway Agency.