US Bridges

Mn 13 over I 35W

Fair

Dakota County, Minnesota · At the JCT of TH 13; 35W · Structure no. 9779

Built
1959
66 years old, rebuilt 1996
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
194 ft
2 main spans
Daily traffic
17,750
2015 count
Owner
State
State Highway Agency

About this bridge

Mn 13 over I 35W is a steel continuous stringer/multi-beam or girder carrying Mn 13 over I 35W in Dakota County, Minnesota. It was built in 1959 and reconstructed in 1996, so it is 66 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 17,750 vehicles a day, roughly 8% of them trucks, projected to reach 17,750 by 2039. The structure is 194 ft (59.2 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMn 13
CrossesI 35W
LocationAt the JCT of TH 13; 35W
RouteState Highway 13
CountyDakota County
StateMinnesota
Coordinates44.77532, -93.28837
Functional classUrban Other Principal 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
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.
Last inspectionApril 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.9 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length194 ft (59.2 m)
Longest span94 ft (28.7 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,750 (2015)
Projected traffic17,750 by 2039
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$889 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mn 13 over I 35W built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1996.

What condition is Mn 13 over I 35W 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 April 2024.

How much traffic does Mn 13 over I 35W carry?

About 17,750 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Mn 13 over I 35W?

The structure is 194 ft (59.2 m) long with a longest span of 94 ft (28.7 m) and a deck 45 ft wide.

Who owns Mn 13 over I 35W?

It is owned by the State Highway Agency.