US Bridges

Csah 15 over Salem Creek

GoodPosted for load

Olmsted County, Minnesota · 0.8 MI S of JCT Csah 25 · Structure no. 55508

Built
1962
63 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
134 ft
3 main spans
Daily traffic
590
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 15 over Salem Creek is a steel continuous stringer/multi-beam or girder carrying Csah 15 over Salem Creek in Olmsted County, Minnesota. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.

It carries about 590 vehicles a day, projected to reach 584 by 2038. The structure is 134 ft (40.8 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCsah 15
CrossesSalem Creek
Location0.8 MI S of JCT Csah 25
RouteCounty Highway 15
Coordinates43.97454, -92.57104
Functional classRural Minor Collector

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.8 US tons
Inventory rating25.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length134 ft (40.8 m)
Longest span60 ft (18.4 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2018)
Projected traffic584 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Csah 15 over Salem Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is Csah 15 over Salem Creek 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 November 2023.

How much traffic does Csah 15 over Salem Creek carry?

About 590 vehicles per day (2018 count).

How long is Csah 15 over Salem Creek?

The structure is 134 ft (40.8 m) long with a longest span of 60 ft (18.4 m) and a deck 33 ft wide.

Who owns Csah 15 over Salem Creek?

It is owned by the County Highway Agency.