US Bridges

Csah 19 over Grand Marais River

Fair

Polk County, Minnesota · 2.9 MI E of JCT TH 220 · Structure no. 90089

Built
1955
70 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
874
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 19 over Grand Marais River is a concrete culvert carrying Csah 19 over Grand Marais River in Polk County, Minnesota. It was built in 1955, so it is 70 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 874 vehicles a day, roughly 7% of them trucks, projected to reach 1,150 by 2042. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 19
CrossesGrand Marais River
Location2.9 MI E of JCT TH 220
RouteCounty Highway 19
CountyPolk County
StateMinnesota
Coordinates47.94954, -96.95568
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58 US tons
Inventory rating34.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic874 (2022)
Projected traffic1,150 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$93 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 19 over Grand Marais River built?

It was built in 1955, making it 70 years old in 2025.

What condition is Csah 19 over Grand Marais River 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 October 2024.

How much traffic does Csah 19 over Grand Marais River carry?

About 874 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Csah 19 over Grand Marais River?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns Csah 19 over Grand Marais River?

It is owned by the County Highway Agency.