US Bridges

Towerline Road over Hale Creek

Good

Iosco County, Michigan · 0.9 MI S of Curtis Road · Structure no. 000000000004154

Built
1952
73 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
22 ft
1 main span
Daily traffic
130
2006 count
Owner
County
County Highway Agency

About this bridge

Towerline Road over Hale Creek is a steel stringer/multi-beam or girder carrying Towerline Road over Hale Creek in Iosco County, Michigan. It was built in 1952, so it is 73 years old, older 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 130 vehicles a day, roughly 5% of them trucks, projected to reach 240 by 2026. The structure is 22 ft (6.8 m) long and 21 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTowerline Road
CrossesHale Creek
Location0.9 MI S of Curtis Road
RouteCounty Highway 0
Coordinates44.35017, -83.78447
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating27.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.8 m)
Longest span20 ft (6.1 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2006)
Projected traffic240 by 2026
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$174,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Towerline Road over Hale Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is Towerline Road over Hale 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 June 2024.

How much traffic does Towerline Road over Hale Creek carry?

About 130 vehicles per day (2006 count), of which roughly 5% are trucks.

How long is Towerline Road over Hale Creek?

The structure is 22 ft (6.8 m) long with a longest span of 20 ft (6.1 m) and a deck 21 ft wide.

Who owns Towerline Road over Hale Creek?

It is owned by the County Highway Agency.