US Bridges

Csah 16 over Turtle Creek

Poor

Todd County, Minnesota · 1.3 MI E of JCT CR 61 · Structure no. 77501

Built
1960
65 years old
Condition
Poor
inspected September 2024
Type
Slab
Wood or Timber
Length
40 ft
2 main spans
Daily traffic
225
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 16 over Turtle Creek is a wood or timber slab carrying Csah 16 over Turtle Creek in Todd County, Minnesota. It was built in 1960, so it is 65 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.

It carries about 225 vehicles a day, projected to reach 240 by 2038. The structure is 40 ft (12.3 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCsah 16
CrossesTurtle Creek
Location1.3 MI E of JCT CR 61
RouteCounty Highway 16
Coordinates46.10729, -94.78649
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating73.6 US tons
Inventory rating53.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 20
Structure length40 ft (12.3 m)
Longest span18 ft (5.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2018)
Projected traffic240 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$450 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 16 over Turtle Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Csah 16 over Turtle 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 September 2024.

How much traffic does Csah 16 over Turtle Creek carry?

About 225 vehicles per day (2018 count).

How long is Csah 16 over Turtle Creek?

The structure is 40 ft (12.3 m) long with a longest span of 18 ft (5.6 m) and a deck 30 ft wide.

Who owns Csah 16 over Turtle Creek?

It is owned by the County Highway Agency.