US Bridges

Csah 7 over W Br Rum River

Poor

Benton County, Minnesota · 0.2 MI S of JCT Csah 22 · Structure no. 05504

Built
1965
60 years old
Condition
Poor
inspected September 2024
Type
Channel Beam
Prestressed Concrete
Length
57 ft
3 main spans
Daily traffic
155
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 7 over W Br Rum River is a prestressed concrete channel beam carrying Csah 7 over W Br Rum River in Benton County, Minnesota. It was built in 1965, so it is 60 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 155 vehicles a day, projected to reach 165 by 2039. The structure is 57 ft (17.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCsah 7
CrossesW Br Rum River
Location0.2 MI S of JCT Csah 22
RouteCounty Highway 7
CountyBenton County
StateMinnesota
Coordinates45.80602, -93.82471
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be 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 rating45 US tons
Inventory rating34.6 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadH 20
Structure length57 ft (17.5 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic155 (2019)
Projected traffic165 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 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 7 over W Br Rum River built?

It was built in 1965, making it 60 years old in 2025.

What condition is Csah 7 over W Br Rum River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Csah 7 over W Br Rum River carry?

About 155 vehicles per day (2019 count).

How long is Csah 7 over W Br Rum River?

The structure is 57 ft (17.5 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Csah 7 over W Br Rum River?

It is owned by the County Highway Agency.