US Bridges

Crockett HWY over Black Creek

Good

Lenawee County, Michigan · 0.5 MI South of Gorman RD · Structure no. 000000000005588

Built
2016
9 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
124 ft
1 main span
Daily traffic
874
2016 count
Owner
County
County Highway Agency

About this bridge

Crockett HWY over Black Creek is a prestressed concrete box beam or girders - multiple carrying Crockett HWY over Black Creek in Lenawee County, Michigan. It was built in 2016, so it is 9 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 874 vehicles a day, roughly 2% of them trucks, projected to reach 2,000 by 2036. The structure is 124 ft (37.8 m) long and 38 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCrockett HWY
CrossesBlack Creek
Location0.5 MI South of Gorman RD
RouteCounty Highway 4671
Coordinates41.81617, -83.92296
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.8 US tons
Inventory rating63.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length124 ft (37.8 m)
Longest span123 ft (37.4 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic874 (2016)
Projected traffic2,000 by 2036
Trucks2%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Crockett HWY over Black Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Crockett HWY over Black 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 September 2024.

How much traffic does Crockett HWY over Black Creek carry?

About 874 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Crockett HWY over Black Creek?

The structure is 124 ft (37.8 m) long with a longest span of 123 ft (37.4 m) and a deck 38 ft wide.

Who owns Crockett HWY over Black Creek?

It is owned by the County Highway Agency.