US Bridges

Csah 8 over Poplar River

Good

Polk County, Minnesota · 0.4 MI S of JCT Csah 35 · Structure no. 60K89

Built
2008
17 years old
Condition
Good
inspected October 2022
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
910
2017 count
Owner
County
County Highway Agency

About this bridge

Csah 8 over Poplar River is a concrete culvert carrying Csah 8 over Poplar River in Polk County, Minnesota. It was built in 2008, so it is 17 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 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 910 vehicles a day, projected to reach 910 by 2039. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCsah 8
CrossesPoplar River
Location0.4 MI S of JCT Csah 35
RouteCounty Highway 8
CountyPolk County
StateMinnesota
Coordinates47.66828, -95.88596
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length29 ft (8.7 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic910 (2017)
Projected traffic910 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 8 over Poplar River built?

It was built in 2008, making it 17 years old in 2025.

What condition is Csah 8 over Poplar 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 October 2022.

How much traffic does Csah 8 over Poplar River carry?

About 910 vehicles per day (2017 count).

How long is Csah 8 over Poplar River?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.3 m).

Who owns Csah 8 over Poplar River?

It is owned by the County Highway Agency.