US Bridges

M 30 over Mesabi Trail

FairPosted for load

Itasca County, Minnesota · In Coleraine · Structure no. 5293

Built
1918
107 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
8,600
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 30 over Mesabi Trail is a steel stringer/multi-beam or girder carrying M 30 over Mesabi Trail in Itasca County, Minnesota. It was built in 1918, so it is 107 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. Its operating status is: posted for load restriction.

It carries about 8,600 vehicles a day, projected to reach 8,600 by 2039. The structure is 32 ft (9.7 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesM 30
CrossesMesabi Trail
LocationIn Coleraine
RouteCity Street 30
CountyItasca County
StateMinnesota
Coordinates47.28983, -93.42776
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating43.2 US tons
Inventory rating28.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.7 m)
Longest span27 ft (8.2 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,600 (2017)
Projected traffic8,600 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesPedestrian / bicycle
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$500 million (2017 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was M 30 over Mesabi Trail built?

It was built in 1918, making it 107 years old in 2025.

What condition is M 30 over Mesabi Trail 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 November 2023.

How much traffic does M 30 over Mesabi Trail carry?

About 8,600 vehicles per day (2017 count).

How long is M 30 over Mesabi Trail?

The structure is 32 ft (9.7 m) long with a longest span of 27 ft (8.2 m) and a deck 32 ft wide.

Who owns M 30 over Mesabi Trail?

It is owned by the City or Municipal Highway Agency.