US Bridges

Msas 105 over Zumbro River

Fair

Olmsted County, Minnesota · 0.3 MI E of JCT TH 63 · Structure no. 55517

Built
1968
57 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
225 ft
3 main spans
Daily traffic
8,900
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Msas 105 over Zumbro River is a steel continuous stringer/multi-beam or girder carrying Msas 105 over Zumbro River in Olmsted County, Minnesota. It was built in 1968, so it is 57 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 8,900 vehicles a day, projected to reach 8,900 by 2039. The structure is 225 ft (68.6 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMsas 105
CrossesZumbro River
Location0.3 MI E of JCT TH 63
RouteCity Street 105
CountyOlmsted County
StateMinnesota
Coordinates44.02351, -92.45754
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length225 ft (68.6 m)
Longest span82 ft (25.1 m)
Deck width62 ft (18.9 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2016)
Projected traffic8,900 by 2039
Trucks—
Lanes on structure3
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 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 Msas 105 over Zumbro River built?

It was built in 1968, making it 57 years old in 2025.

What condition is Msas 105 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 105 over Zumbro River carry?

About 8,900 vehicles per day (2016 count).

How long is Msas 105 over Zumbro River?

The structure is 225 ft (68.6 m) long with a longest span of 82 ft (25.1 m) and a deck 62 ft wide.

Who owns Msas 105 over Zumbro River?

It is owned by the City or Municipal Highway Agency.