US Bridges

CR 305 over Turtle River

Good

Beltrami County, Minnesota · 1.1 MI SE of JCT Csah 22 · Structure no. 04526

Built
2009
16 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
190
2018 count
Owner
County
County Highway Agency

About this bridge

CR 305 over Turtle River is a prestressed concrete stringer/multi-beam or girder carrying CR 305 over Turtle River in Beltrami County, Minnesota. It was built in 2009, so it is 16 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 190 vehicles a day, projected to reach 130 by 2038. The structure is 57 ft (17.5 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCR 305
CrossesTurtle River
Location1.1 MI SE of JCT Csah 22
RouteCounty Highway 305
Coordinates47.59693, -94.83731
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.6 US tons
Inventory rating41.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length57 ft (17.5 m)
Longest span56 ft (17 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2018)
Projected traffic130 by 2038
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 305 over Turtle River built?

It was built in 2009, making it 16 years old in 2025.

What condition is CR 305 over Turtle River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does CR 305 over Turtle River carry?

About 190 vehicles per day (2018 count).

How long is CR 305 over Turtle River?

The structure is 57 ft (17.5 m) long with a longest span of 56 ft (17 m) and a deck 35 ft wide.

Who owns CR 305 over Turtle River?

It is owned by the County Highway Agency.