US Bridges

Alabaster RD over Whitney Creek

Good

Iosco County, Michigan · 3.625 MI W of M-65 · Structure no. 000000000004132

Built
2024
1 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
98 ft
1 main span
Daily traffic
208
2022 count
Owner
County
County Highway Agency

About this bridge

Alabaster RD over Whitney Creek is a steel stringer/multi-beam or girder carrying Alabaster RD over Whitney Creek in Iosco County, Michigan. It was built in 2024, so it is 1 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 208 vehicles a day, roughly 10% of them trucks, projected to reach 230 by 2042. The structure is 98 ft (29.9 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesAlabaster RD
CrossesWhitney Creek
Location3.625 MI W of M-65
RouteCounty Highway 0
CountyIosco County
StateMichigan
Coordinates44.20495, -83.87545
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.2 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length98 ft (29.9 m)
Longest span96 ft (29.3 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic208 (2022)
Projected traffic230 by 2042
Trucks10%
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 Alabaster RD over Whitney Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is Alabaster RD over Whitney 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 December 2024.

How much traffic does Alabaster RD over Whitney Creek carry?

About 208 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Alabaster RD over Whitney Creek?

The structure is 98 ft (29.9 m) long with a longest span of 96 ft (29.3 m) and a deck 29 ft wide.

Who owns Alabaster RD over Whitney Creek?

It is owned by the County Highway Agency.