US Bridges

Cottrell Road over Saginaw Valley RR

Fair

Tuscola County, Michigan · Sec 11-12 Tuscola Twp · Structure no. 000000000010647

Built
2001
24 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
130 ft
1 main span
Daily traffic
965
2009 count
Owner
County
County Highway Agency

About this bridge

Cottrell Road over Saginaw Valley RR is a prestressed concrete box beam or girders - multiple carrying Cottrell Road over Saginaw Valley RR in Tuscola County, Michigan. It was built in 2001, so it is 24 years old, younger than the Michigan average of 48.3 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 965 vehicles a day, projected to reach 1,740 by 2029. The structure is 130 ft (39.6 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCottrell Road
CrossesSaginaw Valley RR
LocationSec 11-12 Tuscola Twp
RouteCounty Highway 0
CountyTuscola County
StateMichigan
Coordinates43.36837, -83.60467
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating64.3 US tons
Inventory rating38.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length130 ft (39.6 m)
Longest span57 ft (17.4 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic965 (2009)
Projected traffic1,740 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cottrell Road over Saginaw Valley RR built?

It was built in 2001, making it 24 years old in 2025.

What condition is Cottrell Road over Saginaw Valley RR 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 June 2023.

How much traffic does Cottrell Road over Saginaw Valley RR carry?

About 965 vehicles per day (2009 count).

How long is Cottrell Road over Saginaw Valley RR?

The structure is 130 ft (39.6 m) long with a longest span of 57 ft (17.4 m) and a deck 31 ft wide.

Who owns Cottrell Road over Saginaw Valley RR?

It is owned by the County Highway Agency.