US Bridges

Csah 12 over Boot Creek

Fair

Waseca County, Minnesota · 1.7 MI E of JCT CR64 · Structure no. 81505

Built
1964
61 years old
Condition
Fair
inspected November 2024
Type
Slab
Wood or Timber
Length
54 ft
3 main spans
Daily traffic
231
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 12 over Boot Creek is a wood or timber slab carrying Csah 12 over Boot Creek in Waseca 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 231 vehicles a day, projected to reach 310 by 2041. The structure is 54 ft (16.5 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 12
CrossesBoot Creek
Location1.7 MI E of JCT CR64
RouteCounty Highway 12
CountyWaseca County
StateMinnesota
Coordinates43.91672, -93.52674
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.9 US tons
Inventory rating34.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 20
Structure length54 ft (16.5 m)
Longest span18 ft (5.5 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic231 (2021)
Projected traffic310 by 2041
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 12 over Boot Creek built?

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

What condition is Csah 12 over Boot 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 November 2024.

How much traffic does Csah 12 over Boot Creek carry?

About 231 vehicles per day (2021 count).

How long is Csah 12 over Boot Creek?

The structure is 54 ft (16.5 m) long with a longest span of 18 ft (5.5 m) and a deck 31 ft wide.

Who owns Csah 12 over Boot Creek?

It is owned by the County Highway Agency.