US Bridges

M 517 over Mississippi River

Good

Ramsey County, Minnesota · Raspberry Island · Structure no. 62580

Built
2002
23 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
326 ft
5 main spans
Daily traffic
100
2000 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 517 over Mississippi River is a concrete continuous slab carrying M 517 over Mississippi River in Ramsey County, Minnesota. It was built in 2002, so it is 23 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, projected to reach 100 by 2029. The structure is 326 ft (99.5 m) long and 29 ft wide. If it were closed, the detour would be 123 mi (198 km).

CarriesM 517
CrossesMississippi River
LocationRaspberry Island
RouteCity Street 517
Coordinates44.9413, -93.09106
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.4 US tons
Inventory rating38.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length326 ft (99.5 m)
Longest span75 ft (22.9 m)
Deck width29 ft (8.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2000)
Projected traffic100 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123 mi (198 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was M 517 over Mississippi River built?

It was built in 2002, making it 23 years old in 2025.

What condition is M 517 over Mississippi River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does M 517 over Mississippi River carry?

About 100 vehicles per day (2000 count).

How long is M 517 over Mississippi River?

The structure is 326 ft (99.5 m) long with a longest span of 75 ft (22.9 m) and a deck 29 ft wide.

Who owns M 517 over Mississippi River?

It is owned by the City or Municipal Highway Agency.