US Bridges

Msas 109 over I 35

Fair

Steele County, Minnesota · 1.7 MI N of JCT TH 14 · Structure no. 74813

Built
1964
61 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
228 ft
4 main spans
Daily traffic
14,200
2011 count
Owner
State
State Highway Agency

About this bridge

Msas 109 over I 35 is a prestressed concrete stringer/multi-beam or girder carrying Msas 109 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 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 14,200 vehicles a day, projected to reach 14,200 by 2039. The structure is 228 ft (69.4 m) long and 79 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMsas 109
CrossesI 35
Location1.7 MI N of JCT TH 14
RouteCity Street 109
CountySteele County
StateMinnesota
Coordinates44.08436, -93.24667
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating35.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length228 ft (69.4 m)
Longest span71 ft (21.6 m)
Deck width79 ft (24 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,200 (2011)
Projected traffic14,200 by 2039
Trucks—
Lanes on structure5
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 109 over I 35 built?

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

What condition is Msas 109 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 August 2023.

How much traffic does Msas 109 over I 35 carry?

About 14,200 vehicles per day (2011 count).

How long is Msas 109 over I 35?

The structure is 228 ft (69.4 m) long with a longest span of 71 ft (21.6 m) and a deck 79 ft wide.

Who owns Msas 109 over I 35?

It is owned by the State Highway Agency.