US Bridges

Greenwood Road over Tittabawassee River

Good

Ogemaw County, Michigan · 1 MI West of M-30 · Structure no. 000000000008449

Built
1992
33 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
520
2006 count
Owner
County
County Highway Agency

About this bridge

Greenwood Road over Tittabawassee River is a concrete culvert carrying Greenwood Road over Tittabawassee River in Ogemaw County, Michigan. It was built in 1992, so it is 33 years old, younger than the Michigan average of 48.3 years.

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

It carries about 520 vehicles a day, projected to reach 650 by 2026. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 8.7 mi (14 km).

CarriesGreenwood Road
CrossesTittabawassee River
Location1 MI West of M-30
RouteCounty Highway 6504
Coordinates44.17534, -84.28706
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2006)
Projected traffic650 by 2026
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Greenwood Road over Tittabawassee River built?

It was built in 1992, making it 33 years old in 2025.

What condition is Greenwood Road over Tittabawassee 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 July 2023.

How much traffic does Greenwood Road over Tittabawassee River carry?

About 520 vehicles per day (2006 count).

How long is Greenwood Road over Tittabawassee River?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m).

Who owns Greenwood Road over Tittabawassee River?

It is owned by the County Highway Agency.