US Bridges

Msas 129 over Red Cedar River

Fair

Mower County, Minnesota · 0.8 MI N of Oakland Ave · Structure no. 50512

Built
1966
59 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
247 ft
3 main spans
Daily traffic
1,550
2016 count
Owner
County
County Highway Agency

About this bridge

Msas 129 over Red Cedar River is a steel continuous stringer/multi-beam or girder carrying Msas 129 over Red Cedar River in Mower County, Minnesota. It was built in 1966, so it is 59 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 1,550 vehicles a day, projected to reach 1,550 by 2039. The structure is 247 ft (75.3 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMsas 129
CrossesRed Cedar River
Location0.8 MI N of Oakland Ave
RouteCity Street 129
CountyMower County
StateMinnesota
Coordinates43.67824, -92.97375
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length247 ft (75.3 m)
Longest span92 ft (28 m)
Deck width60 ft (18.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,550 (2016)
Projected traffic1,550 by 2039
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$432 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Msas 129 over Red Cedar River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Msas 129 over Red Cedar River 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 June 2023.

How much traffic does Msas 129 over Red Cedar River carry?

About 1,550 vehicles per day (2016 count).

How long is Msas 129 over Red Cedar River?

The structure is 247 ft (75.3 m) long with a longest span of 92 ft (28 m) and a deck 60 ft wide.

Who owns Msas 129 over Red Cedar River?

It is owned by the County Highway Agency.