US Bridges

Csah 6 over Dry Run

Fair

Goodhue County, Minnesota · 7.0 MI N of Zumbrota · Structure no. 25518

Built
1974
51 years old
Condition
Fair
inspected September 2024
Type
Channel Beam
Prestressed Concrete
Length
69 ft
3 main spans
Daily traffic
1,250
2015 count
Owner
County
County Highway Agency

About this bridge

Csah 6 over Dry Run is a prestressed concrete channel beam carrying Csah 6 over Dry Run in Goodhue County, Minnesota. It was built in 1974, so it is 51 years old, older 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 5 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 1,250 vehicles a day, projected to reach 1,250 by 2039. The structure is 69 ft (21 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCsah 6
CrossesDry Run
Location7.0 MI N of Zumbrota
RouteCounty Highway 6
CountyGoodhue County
StateMinnesota
Coordinates44.36309, -92.65182
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating73.6 US tons
Inventory rating44.1 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length69 ft (21 m)
Longest span31 ft (9.4 m)
Deck width38 ft (11.6 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2015)
Projected traffic1,250 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 6 over Dry Run built?

It was built in 1974, making it 51 years old in 2025.

What condition is Csah 6 over Dry Run 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 Csah 6 over Dry Run carry?

About 1,250 vehicles per day (2015 count).

How long is Csah 6 over Dry Run?

The structure is 69 ft (21 m) long with a longest span of 31 ft (9.4 m) and a deck 38 ft wide.

Who owns Csah 6 over Dry Run?

It is owned by the County Highway Agency.