US Bridges

Msas 104 over Zumbro River

Fair

Olmsted County, Minnesota · 0.3 MI E of JCT TH 63 · Structure no. 89188

Built
1956
69 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
255 ft
4 main spans
Daily traffic
6,900
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Msas 104 over Zumbro River is a concrete continuous tee beam carrying Msas 104 over Zumbro River in Olmsted County, Minnesota. It was built in 1956, so it is 69 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 6 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 6,900 vehicles a day, projected to reach 13,315 by 2036. The structure is 255 ft (77.6 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 104
CrossesZumbro River
Location0.3 MI E of JCT TH 63
RouteCity Street 104
CountyOlmsted County
StateMinnesota
Coordinates44.03043, -92.45757
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating30.8 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length255 ft (77.6 m)
Longest span70 ft (21.3 m)
Deck width60 ft (18.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,900 (2016)
Projected traffic13,315 by 2036
Trucks—
Lanes on structure2
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1,000 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Msas 104 over Zumbro River built?

It was built in 1956, making it 69 years old in 2025.

What condition is Msas 104 over Zumbro 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 October 2024.

How much traffic does Msas 104 over Zumbro River carry?

About 6,900 vehicles per day (2016 count).

How long is Msas 104 over Zumbro River?

The structure is 255 ft (77.6 m) long with a longest span of 70 ft (21.3 m) and a deck 60 ft wide.

Who owns Msas 104 over Zumbro River?

It is owned by the City or Municipal Highway Agency.