US Bridges

Mn 55 over I 35E NB Col SB on Rmp

Fair

Dakota County, Minnesota · 0.3 MI S of JCT TH 494 · Structure no. 19819

Built
1981
44 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
445 ft
4 main spans
Daily traffic
27,500
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 55 over I 35E NB Col SB on Rmp is a steel continuous stringer/multi-beam or girder carrying Mn 55 over I 35E NB Col SB on Rmp in Dakota County, Minnesota. It was built in 1981, so it is 44 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 27,500 vehicles a day, roughly 5% of them trucks, projected to reach 25,500 by 2039. The structure is 445 ft (135.6 m) long and 111 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMn 55
CrossesI 35E NB Col SB on Rmp
Location0.3 MI S of JCT TH 494
RouteState Highway 55
CountyDakota County
StateMinnesota
Coordinates44.85883, -93.14588
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length445 ft (135.6 m)
Longest span125 ft (38.1 m)
Deck width111 ft (33.7 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,500 (2019)
Projected traffic25,500 by 2039
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mn 55 over I 35E NB Col SB on Rmp built?

It was built in 1981, making it 44 years old in 2025.

What condition is Mn 55 over I 35E NB Col SB on Rmp 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 June 2024.

How much traffic does Mn 55 over I 35E NB Col SB on Rmp carry?

About 27,500 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Mn 55 over I 35E NB Col SB on Rmp?

The structure is 445 ft (135.6 m) long with a longest span of 125 ft (38.1 m) and a deck 111 ft wide.

Who owns Mn 55 over I 35E NB Col SB on Rmp?

It is owned by the State Highway Agency.