US Bridges

Mn 280 over Robbins Transitway; RR

Fair

Ramsey County, Minnesota · 1.0 MI N of JCT TH 94 · Structure no. 6805

Built
1960
65 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,022 ft
11 main spans
Daily traffic
58,214
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 280 over Robbins Transitway; RR is a prestressed concrete stringer/multi-beam or girder carrying Mn 280 over Robbins Transitway; RR in Ramsey County, Minnesota. It was built in 1960, so it is 65 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 58,214 vehicles a day, roughly 5% of them trucks, projected to reach 69,000 by 2042. The structure is 1,022 ft (311.4 m) long and 101 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMn 280
CrossesRobbins Transitway; RR
Location1.0 MI N of JCT TH 94
RouteState Highway 280
CountyRamsey County
StateMinnesota
Coordinates44.97368, -93.20229
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.7 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans11
Design loadHS 25 or greater
Structure length1,022 ft (311.4 m)
Longest span122 ft (37.2 m)
Deck width101 ft (30.9 m)
Roadway width95 ft (29.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58,214 (2022)
Projected traffic69,000 by 2042
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mn 280 over Robbins Transitway; RR built?

It was built in 1960, making it 65 years old in 2025.

What condition is Mn 280 over Robbins Transitway; RR 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 2024.

How much traffic does Mn 280 over Robbins Transitway; RR carry?

About 58,214 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Mn 280 over Robbins Transitway; RR?

The structure is 1,022 ft (311.4 m) long with a longest span of 122 ft (37.2 m) and a deck 101 ft wide.

Who owns Mn 280 over Robbins Transitway; RR?

It is owned by the State Highway Agency.