US Bridges

Csah 1 over Sauk River

Good

Stearns County, Minnesota · 0.5 MI SE of JCT TH 15 · Structure no. 73528

Built
1979
46 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
222 ft
3 main spans
Daily traffic
14,300
2017 count
Owner
County
County Highway Agency

About this bridge

Csah 1 over Sauk River is a steel continuous stringer/multi-beam or girder carrying Csah 1 over Sauk River in Stearns County, Minnesota. It was built in 1979, so it is 46 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 14,300 vehicles a day, roughly 9% of them trucks, projected to reach 14,300 by 2039. The structure is 222 ft (67.8 m) long and 58 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesCsah 1
CrossesSauk River
Location0.5 MI SE of JCT TH 15
RouteCounty Highway 1
Coordinates45.59139, -94.17777
Functional classUrban Minor Arterial

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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.9 US tons
Inventory rating35.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length222 ft (67.8 m)
Longest span85 ft (25.9 m)
Deck width58 ft (17.8 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,300 (2017)
Projected traffic14,300 by 2039
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.7 mi (14 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 1 over Sauk River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Csah 1 over Sauk River 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 December 2023.

How much traffic does Csah 1 over Sauk River carry?

About 14,300 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is Csah 1 over Sauk River?

The structure is 222 ft (67.8 m) long with a longest span of 85 ft (25.9 m) and a deck 58 ft wide.

Who owns Csah 1 over Sauk River?

It is owned by the County Highway Agency.