US Bridges

T 9 over W Br Little Rock River

Good

Nobles County, Minnesota · 1.4 MI E of JCT Csah 15 · Structure no. 53525

Built
1978
47 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
87 ft
2 main spans
Daily traffic
33
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 9 over W Br Little Rock River is a prestressed concrete tee beam carrying T 9 over W Br Little Rock River in Nobles County, Minnesota. It was built in 1978, so it is 47 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 33 vehicles a day, projected to reach 33 by 2029. The structure is 87 ft (26.5 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 9
CrossesW Br Little Rock River
Location1.4 MI E of JCT Csah 15
RouteCounty Highway 9
Coordinates43.52908, -95.84637
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.1 US tons
Inventory rating30.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length87 ft (26.5 m)
Longest span42 ft (12.9 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (1986)
Projected traffic33 by 2029
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

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 9 over W Br Little Rock River built?

It was built in 1978, making it 47 years old in 2025.

What condition is T 9 over W Br Little 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 9 over W Br Little Rock River carry?

About 33 vehicles per day (1986 count).

How long is T 9 over W Br Little Rock River?

The structure is 87 ft (26.5 m) long with a longest span of 42 ft (12.9 m) and a deck 32 ft wide.

Who owns T 9 over W Br Little Rock River?

It is owned by the Town or Township Highway Agency.