US Bridges

Csah 29 over S Br Two Rivers

Fair

Roseau County, Minnesota · 0.3 MI S of JCT TH 11 · Structure no. 68516

Built
1968
57 years old
Condition
Fair
inspected October 2023
Type
Channel Beam
Prestressed Concrete
Length
93 ft
3 main spans
Daily traffic
75
2012 count
Owner
County
County Highway Agency

About this bridge

Csah 29 over S Br Two Rivers is a prestressed concrete channel beam carrying Csah 29 over S Br Two Rivers in Roseau County, Minnesota. It was built in 1968, so it is 57 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 75 vehicles a day, projected to reach 75 by 2039. The structure is 93 ft (28.4 m) long and 32 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesCsah 29
CrossesS Br Two Rivers
Location0.3 MI S of JCT TH 11
RouteCounty Highway 29
CountyRoseau County
StateMinnesota
Coordinates48.66648, -96.23796
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length93 ft (28.4 m)
Longest span30 ft (9.1 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2012)
Projected traffic75 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 29 over S Br Two Rivers built?

It was built in 1968, making it 57 years old in 2025.

What condition is Csah 29 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 29 over S Br Two Rivers carry?

About 75 vehicles per day (2012 count).

How long is Csah 29 over S Br Two Rivers?

The structure is 93 ft (28.4 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.

Who owns Csah 29 over S Br Two Rivers?

It is owned by the County Highway Agency.