US Bridges

Csah 12 over Dry Run

Good

Olmsted County, Minnesota · 1.4 MI W of JCT TH 52 · Structure no. 55J20

Built
1999
26 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
3,960
2014 count
Owner
County
County Highway Agency

About this bridge

Csah 12 over Dry Run is a concrete culvert carrying Csah 12 over Dry Run in Olmsted County, Minnesota. It was built in 1999, so it is 26 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,960 vehicles a day, projected to reach 4,059 by 2034. The structure is 31 ft (9.6 m) long. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCsah 12
CrossesDry Run
Location1.4 MI W of JCT TH 52
RouteCounty Highway 12
Coordinates44.14435, -92.55727
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length31 ft (9.6 m)
Longest span7 ft (2.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,960 (2014)
Projected traffic4,059 by 2034
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 12 over Dry Run built?

It was built in 1999, making it 26 years old in 2025.

What condition is Csah 12 over Dry Run 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 12 over Dry Run carry?

About 3,960 vehicles per day (2014 count).

How long is Csah 12 over Dry Run?

The structure is 31 ft (9.6 m) long with a longest span of 7 ft (2.2 m).

Who owns Csah 12 over Dry Run?

It is owned by the County Highway Agency.