US Bridges

T 53 over Otter Creek

Fair

Mower County, Minnesota · 1.4 MI E of JCT TH 218 · Structure no. 50537

Built
1976
49 years old
Condition
Fair
inspected May 2023
Type
Channel Beam
Prestressed Concrete
Length
124 ft
4 main spans
Daily traffic
45
1986 count
Owner
County
County Highway Agency

About this bridge

T 53 over Otter Creek is a prestressed concrete channel beam carrying T 53 over Otter Creek in Mower County, Minnesota. It was built in 1976, so it is 49 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 45 vehicles a day, projected to reach 45 by 2029. The structure is 124 ft (37.9 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT 53
CrossesOtter Creek
Location1.4 MI E of JCT TH 218
RouteCounty Highway 53
Coordinates43.50668, -92.91661
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating76.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length124 ft (37.9 m)
Longest span31 ft (9.4 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (1986)
Projected traffic45 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$700 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was T 53 over Otter Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is T 53 over Otter Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does T 53 over Otter Creek carry?

About 45 vehicles per day (1986 count).

How long is T 53 over Otter Creek?

The structure is 124 ft (37.9 m) long with a longest span of 31 ft (9.4 m) and a deck 29 ft wide.

Who owns T 53 over Otter Creek?

It is owned by the County Highway Agency.