US Bridges

T 128 over Elk River

Good

Benton County, Minnesota · 0.3 MI W of JCT CR 82 · Structure no. 05524

Built
1979
46 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
18
1971 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 128 over Elk River is a prestressed concrete tee beam carrying T 128 over Elk River in Benton County, Minnesota. It was built in 1979, so it is 46 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 18 vehicles a day, projected to reach 18 by 2029. The structure is 64 ft (19.4 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesT 128
CrossesElk River
Location0.3 MI W of JCT CR 82
RouteCounty Highway 128
Coordinates45.72773, -93.9919
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating19.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length64 ft (19.4 m)
Longest span62 ft (18.9 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (1971)
Projected traffic18 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 128 over Elk River built?

It was built in 1979, making it 46 years old in 2025.

What condition is T 128 over Elk 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 November 2023.

How much traffic does T 128 over Elk River carry?

About 18 vehicles per day (1971 count).

How long is T 128 over Elk River?

The structure is 64 ft (19.4 m) long with a longest span of 62 ft (18.9 m) and a deck 32 ft wide.

Who owns T 128 over Elk River?

It is owned by the Town or Township Highway Agency.