US Bridges

T 15 over Split Rock Creek

Fair

Pipestone County, Minnesota · 0.3 MI W of JCT TH 23 · Structure no. 59530

Built
2003
22 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
47 ft
3 main spans
Daily traffic
66
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 15 over Split Rock Creek is a concrete culvert carrying T 15 over Split Rock Creek in Pipestone County, Minnesota. It was built in 2003, so it is 22 years old, younger 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 66 vehicles a day, projected to reach 86 by 2041. The structure is 47 ft (14.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT 15
CrossesSplit Rock Creek
Location0.3 MI W of JCT TH 23
RouteCounty Highway 15
CountyPipestone County
StateMinnesota
Coordinates43.92058, -96.36737
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length47 ft (14.3 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66 (2021)
Projected traffic86 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T 15 over Split Rock Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is T 15 over Split Rock 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 May 2024.

How much traffic does T 15 over Split Rock Creek carry?

About 66 vehicles per day (2021 count).

How long is T 15 over Split Rock Creek?

The structure is 47 ft (14.3 m) long with a longest span of 14 ft (4.3 m).

Who owns T 15 over Split Rock Creek?

It is owned by the Town or Township Highway Agency.