US Bridges

Csah 4 over S Br Two Rivers

Fair

Roseau County, Minnesota · 0.3 MI E of JCT TH 11 · Structure no. 68504

Built
1964
61 years old
Condition
Fair
inspected October 2023
Type
Channel Beam
Prestressed Concrete
Length
72 ft
3 main spans
Daily traffic
330
2012 count
Owner
County
County Highway Agency

About this bridge

Csah 4 over S Br Two Rivers is a prestressed concrete channel beam carrying Csah 4 over S Br Two Rivers in Roseau County, Minnesota. It was built in 1964, so it is 61 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 330 vehicles a day, projected to reach 330 by 2039. The structure is 72 ft (22 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCsah 4
CrossesS Br Two Rivers
Location0.3 MI E of JCT TH 11
RouteCounty Highway 4
CountyRoseau County
StateMinnesota
Coordinates48.70598, -96.16573
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59 US tons
Inventory rating35.3 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length72 ft (22 m)
Longest span31 ft (9.5 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2012)
Projected traffic330 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 4 over S Br Two Rivers built?

It was built in 1964, making it 61 years old in 2025.

What condition is Csah 4 over S Br Two Rivers 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 2023.

How much traffic does Csah 4 over S Br Two Rivers carry?

About 330 vehicles per day (2012 count).

How long is Csah 4 over S Br Two Rivers?

The structure is 72 ft (22 m) long with a longest span of 31 ft (9.5 m) and a deck 31 ft wide.

Who owns Csah 4 over S Br Two Rivers?

It is owned by the County Highway Agency.