US Bridges

Csah 28 over Clearwater River

Fair

Clearwater County, Minnesota · 0.7 MI S of JCT TH 2 · Structure no. 15508

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
54 ft
3 main spans
Daily traffic
498
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 28 over Clearwater River is a wood or timber slab carrying Csah 28 over Clearwater River in Clearwater County, Minnesota. It was built in 1980, so it is 45 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 6 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 498 vehicles a day, projected to reach 500 by 2042. The structure is 54 ft (16.5 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 28
CrossesClearwater River
Location0.7 MI S of JCT TH 2
RouteCounty Highway 28
CountyClearwater County
StateMinnesota
Coordinates47.51146, -95.40459
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 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 evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51.8 US tons
Inventory rating37.4 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span18 ft (5.5 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic498 (2022)
Projected traffic500 by 2042
Trucks—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 28 over Clearwater River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Csah 28 over Clearwater 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 28 over Clearwater River carry?

About 498 vehicles per day (2022 count).

How long is Csah 28 over Clearwater River?

The structure is 54 ft (16.5 m) long with a longest span of 18 ft (5.5 m) and a deck 38 ft wide.

Who owns Csah 28 over Clearwater River?

It is owned by the County Highway Agency.