US Bridges

Mn 15 over Mid Br Rush RIVER(CD#23A

Good

Sibley County, Minnesota · 2.2 MI S of JCT TH 19 · Structure no. 95828

Built
1985
40 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
3,783
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 15 over Mid Br Rush RIVER(CD#23A is a concrete culvert carrying Mn 15 over Mid Br Rush RIVER(CD#23A in Sibley County, Minnesota. It was built in 1985, so it is 40 years old, older 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 3,783 vehicles a day, roughly 10% of them trucks, projected to reach 4,000 by 2042. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesMn 15
CrossesMid Br Rush RIVER(CD#23A
Location2.2 MI S of JCT TH 19
RouteState Highway 15
CountySibley County
StateMinnesota
Coordinates44.51293, -94.3716
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,783 (2022)
Projected traffic4,000 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Mid Br Rush RIVER(CD#23A built?

It was built in 1985, making it 40 years old in 2025.

What condition is Mn 15 over Mid Br Rush RIVER(CD#23A 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 September 2024.

How much traffic does Mn 15 over Mid Br Rush RIVER(CD#23A carry?

About 3,783 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Mn 15 over Mid Br Rush RIVER(CD#23A?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m).

Who owns Mn 15 over Mid Br Rush RIVER(CD#23A?

It is owned by the State Highway Agency.