US Bridges

T 65 over Rock River

Good

Rock County, Minnesota · 0.7 MI W of JCT Csah 9 · Structure no. 67547

Built
2003
22 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete Continuous
Length
140 ft
3 main spans
Daily traffic
56
2000 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 65 over Rock River is a concrete continuous slab carrying T 65 over Rock River in Rock County, Minnesota. It was built in 2003, so it is 22 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 56 vehicles a day, projected to reach 56 by 2029. The structure is 140 ft (42.8 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesT 65
CrossesRock River
Location0.7 MI W of JCT Csah 9
RouteCounty Highway 65
Coordinates43.73963, -96.14726
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
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 rating89.5 US tons
Inventory rating53.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length140 ft (42.8 m)
Longest span53 ft (16.2 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56 (2000)
Projected traffic56 by 2029
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T 65 over Rock River built?

It was built in 2003, making it 22 years old in 2025.

What condition is T 65 over Rock 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 October 2023.

How much traffic does T 65 over Rock River carry?

About 56 vehicles per day (2000 count).

How long is T 65 over Rock River?

The structure is 140 ft (42.8 m) long with a longest span of 53 ft (16.2 m) and a deck 35 ft wide.

Who owns T 65 over Rock River?

It is owned by the Town or Township Highway Agency.