US Bridges

Msas 128 over I 35

Fair

Steele County, Minnesota · 0.8 MI N of JCT TH 14; 35 · Structure no. 74806

Built
1964
61 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
224 ft
4 main spans
Daily traffic
900
2019 count
Owner
State
State Highway Agency

About this bridge

Msas 128 over I 35 is a prestressed concrete stringer/multi-beam or girder carrying Msas 128 over I 35 in Steele County, Minnesota. It was built in 1964, so it is 61 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 900 vehicles a day, projected to reach 980 by 2039. The structure is 224 ft (68.4 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMsas 128
CrossesI 35
Location0.8 MI N of JCT TH 14; 35
RouteCity Street 128
CountySteele County
StateMinnesota
Coordinates44.07037, -93.25207
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.7 US tons
Inventory rating35.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length224 ft (68.4 m)
Longest span70 ft (21.4 m)
Deck width35 ft (10.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2019)
Projected traffic980 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Msas 128 over I 35 built?

It was built in 1964, making it 61 years old in 2025.

What condition is Msas 128 over I 35 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 July 2023.

How much traffic does Msas 128 over I 35 carry?

About 900 vehicles per day (2019 count).

How long is Msas 128 over I 35?

The structure is 224 ft (68.4 m) long with a longest span of 70 ft (21.4 m) and a deck 35 ft wide.

Who owns Msas 128 over I 35?

It is owned by the State Highway Agency.