Csah 7 over Stream

FairPosted for load

Rock County, Minnesota · 0.4 MI E of JCT CR 66 · Structure no. 92762

Built: 1959; 66 years old
Condition: Fair; inspected September 2023
Type: Slab; Wood or Timber
Length: 24 ft; 1 main span
Daily traffic: 240; 2022 count
Owner: County; County Highway Agency

About this bridge

Csah 7 over Stream is a wood or timber slab carrying Csah 7 over Stream in Rock County, Minnesota. It was built in 1959, so it is 66 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: posted for load restriction.

It carries about 240 vehicles a day, projected to reach 255 by 2042. The structure is 24 ft (7.4 m) long and 30 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

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CarriesCsah 7

CrossesStream

Location0.4 MI E of JCT CR 66

RouteCounty Highway 7

CountyRock County

StateMinnesota

Coordinates43.77621, -96.30343

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.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.

Last inspectionSeptember 2023

Inspection intervalevery 24 months

Operating statusPosted for load restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating45.7 US tons

Inventory rating30.2 US tons

Structure

Structure typeSlab

MaterialWood or Timber

DeckWood or timber

Main spans1

Design loadH 15

Structure length24 ft (7.4 m)

Longest span22 ft (6.7 m)

Deck width30 ft (9 m)

Roadway width29 ft (8.7 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2022)

Projected traffic255 by 2042

Trucks—

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed19.9 mi (32 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$375 million

NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 7 over Stream built?

It was built in 1959, making it 66 years old in 2025.

What condition is Csah 7 over Stream 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 2023.

How much traffic does Csah 7 over Stream carry?

About 240 vehicles per day (2022 count).

How long is Csah 7 over Stream?

The structure is 24 ft (7.4 m) long with a longest span of 22 ft (6.7 m) and a deck 30 ft wide.

Who owns Csah 7 over Stream?

It is owned by the County Highway Agency.