US Bridges

Mn 15 over Benton DR Miss Rvr RR

Fair

Benton County, Minnesota · 3.3 MI N of JCT TH 23 · Structure no. 05011

Built
1993
32 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,711 ft
13 main spans
Daily traffic
26,000
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 15 over Benton DR Miss Rvr RR is a prestressed concrete stringer/multi-beam or girder carrying Mn 15 over Benton DR Miss Rvr RR in Benton County, Minnesota. It was built in 1993, so it is 32 years old, younger 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 6 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 26,000 vehicles a day, roughly 5% of them trucks, projected to reach 24,800 by 2039. The structure is 1,711 ft (521.4 m) long and 85 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMn 15
CrossesBenton DR Miss Rvr RR
Location3.3 MI N of JCT TH 23
RouteState Highway 15
CountyBenton County
StateMinnesota
Coordinates45.59969, -94.18765
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.6 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans13
Design loadHS 25 or greater
Structure length1,711 ft (521.4 m)
Longest span140 ft (42.7 m)
Deck width85 ft (26 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2019)
Projected traffic24,800 by 2039
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 15 over Benton DR Miss Rvr RR built?

It was built in 1993, making it 32 years old in 2025.

What condition is Mn 15 over Benton DR Miss Rvr 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 September 2024.

How much traffic does Mn 15 over Benton DR Miss Rvr RR carry?

About 26,000 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Mn 15 over Benton DR Miss Rvr RR?

The structure is 1,711 ft (521.4 m) long with a longest span of 140 ft (42.7 m) and a deck 85 ft wide.

Who owns Mn 15 over Benton DR Miss Rvr RR?

It is owned by the State Highway Agency.