US Bridges

Csah 28 over S Br Two Rivers (dam)

FairClosed to traffic

Kittson County, Minnesota · 0.5 MI N of JCT Csah 10 · Structure no. 7498

Built
1937
88 years old
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Concrete
Length
68 ft
3 main spans
Daily traffic
140
2017 count
Owner
County
County Highway Agency

About this bridge

Csah 28 over S Br Two Rivers (dam) is a concrete girder and floorbeam system carrying Csah 28 over S Br Two Rivers (dam) in Kittson County, Minnesota. It was built in 1937, so it is 88 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. Its operating status is: closed to all traffic.

It carries about 140 vehicles a day, projected to reach 140 by 2039. The structure is 68 ft (20.8 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCsah 28
CrossesS Br Two Rivers (dam)
Location0.5 MI N of JCT Csah 10
RouteCounty Highway 28
CountyKittson County
StateMinnesota
Coordinates48.723, -96.63423
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.8 US tons
Inventory rating17.3 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length68 ft (20.8 m)
Longest span23 ft (7.1 m)
Deck width23 ft (6.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2017)
Projected traffic140 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 statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$180 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 28 over S Br Two Rivers (dam) built?

It was built in 1937, making it 88 years old in 2025.

What condition is Csah 28 over S Br Two Rivers (dam) 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 September 2024.

How much traffic does Csah 28 over S Br Two Rivers (dam) carry?

About 140 vehicles per day (2017 count).

How long is Csah 28 over S Br Two Rivers (dam)?

The structure is 68 ft (20.8 m) long with a longest span of 23 ft (7.1 m) and a deck 23 ft wide.

Who owns Csah 28 over S Br Two Rivers (dam)?

It is owned by the County Highway Agency.