US Bridges

Csah 15 over Middle Creek

PoorPosted for load

Renville County, Minnesota · 0.7 MI W of JCT Csah 21 · Structure no. 94062

Built
1958
67 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
30
2011 count
Owner
County
County Highway Agency

About this bridge

Csah 15 over Middle Creek is a steel stringer/multi-beam or girder carrying Csah 15 over Middle Creek in Renville County, Minnesota. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, projected to reach 30 by 2039. The structure is 26 ft (7.8 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCsah 15
CrossesMiddle Creek
Location0.7 MI W of JCT Csah 21
RouteCounty Highway 15
Coordinates44.62378, -95.16077
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.8 US tons
Inventory rating25.2 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length26 ft (7.8 m)
Longest span23 ft (7 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2011)
Projected traffic30 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$248 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 15 over Middle Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Csah 15 over Middle Creek 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 November 2024.

How much traffic does Csah 15 over Middle Creek carry?

About 30 vehicles per day (2011 count).

How long is Csah 15 over Middle Creek?

The structure is 26 ft (7.8 m) long with a longest span of 23 ft (7 m) and a deck 24 ft wide.

Who owns Csah 15 over Middle Creek?

It is owned by the County Highway Agency.