US Bridges

Moonstone Drive over Thread Creek

Good

Genesee County, Michigan · Grand Blanc Twp Sec 12 · Structure no. 000000000013384

Built
2004
21 years old
Condition
Good
inspected October 2024
Type
Arch - Deck
Concrete
Length
132 ft
3 main spans
Daily traffic
660
2009 count
Owner
County
County Highway Agency

About this bridge

Moonstone Drive over Thread Creek is a concrete arch - deck carrying Moonstone Drive over Thread Creek in Genesee County, Michigan. It was built in 2004, so it is 21 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 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 660 vehicles a day, projected to reach 1,192 by 2029. The structure is 132 ft (40.2 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMoonstone Drive
CrossesThread Creek
LocationGrand Blanc Twp Sec 12
RouteCounty Highway 0
CountyGenesee County
StateMichigan
Coordinates42.93678, -83.58311
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating105.4 US tons
Inventory rating81.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length132 ft (40.2 m)
Longest span48 ft (14.6 m)
Deck width48 ft (14.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic660 (2009)
Projected traffic1,192 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Moonstone Drive over Thread Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Moonstone Drive over Thread Creek 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 October 2024.

How much traffic does Moonstone Drive over Thread Creek carry?

About 660 vehicles per day (2009 count).

How long is Moonstone Drive over Thread Creek?

The structure is 132 ft (40.2 m) long with a longest span of 48 ft (14.6 m) and a deck 48 ft wide.

Who owns Moonstone Drive over Thread Creek?

It is owned by the County Highway Agency.