US Bridges

Csah 4 over Rose Creek

FairPosted for load

Mower County, Minnesota · 0.8 MI W of JCT Csah 19 · Structure no. 7050

Built
1957
68 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
560
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 4 over Rose Creek is a steel stringer/multi-beam or girder carrying Csah 4 over Rose Creek in Mower County, Minnesota. It was built in 1957, so it is 68 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. Its operating status is: posted for load restriction.

It carries about 560 vehicles a day, projected to reach 560 by 2039. The structure is 63 ft (19.2 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCsah 4
CrossesRose Creek
Location0.8 MI W of JCT Csah 19
RouteCounty Highway 4
CountyMower County
StateMinnesota
Coordinates43.60161, -92.84431
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.8 US tons
Inventory rating21.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2016)
Projected traffic560 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$168 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 4 over Rose Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Csah 4 over Rose Creek 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 May 2024.

How much traffic does Csah 4 over Rose Creek carry?

About 560 vehicles per day (2016 count).

How long is Csah 4 over Rose Creek?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 27 ft wide.

Who owns Csah 4 over Rose Creek?

It is owned by the County Highway Agency.