US Bridges

Csah 7 over Mound Creek

FairPosted for load

Rock County, Minnesota · 0.3 MI E of JCT TH 75 · Structure no. L2106

Built
1959
66 years old
Condition
Fair
inspected October 2023
Type
Slab
Wood or Timber
Length
26 ft
1 main span
Daily traffic
1,178
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 7 over Mound Creek is a wood or timber slab carrying Csah 7 over Mound Creek 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 1,178 vehicles a day, projected to reach 1,050 by 2042. The structure is 26 ft (8 m) long and 47 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesCsah 7
CrossesMound Creek
Location0.3 MI E of JCT TH 75
RouteCounty Highway 7
CountyRock County
StateMinnesota
Coordinates43.77578, -96.20641
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating37.4 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length26 ft (8 m)
Longest span24 ft (7.3 m)
Deck width47 ft (14.2 m)
Roadway width45 ft (13.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,178 (2022)
Projected traffic1,050 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 Mound Creek built?

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

What condition is Csah 7 over Mound Creek 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 7 over Mound Creek carry?

About 1,178 vehicles per day (2022 count).

How long is Csah 7 over Mound Creek?

The structure is 26 ft (8 m) long with a longest span of 24 ft (7.3 m) and a deck 47 ft wide.

Who owns Csah 7 over Mound Creek?

It is owned by the County Highway Agency.