US Bridges

Territorial Road over Woolace Martn Walters DR

Poor

Hillsdale County, Michigan · 0.4 MI E of Coman RD · Structure no. 000000000003282

Built
1936
89 years old
Condition
Poor
inspected November 2024
Type
Tee Beam
Concrete
Length
23 ft
1 main span
Daily traffic
976
2013 count
Owner
County
County Highway Agency

About this bridge

Territorial Road over Woolace Martn Walters DR is a concrete tee beam carrying Territorial Road over Woolace Martn Walters DR in Hillsdale County, Michigan. It was built in 1936, so it is 89 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 976 vehicles a day, projected to reach 1,601 by 2038. The structure is 23 ft (7 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesTerritorial Road
CrossesWoolace Martn Walters DR
Location0.4 MI E of Coman RD
RouteCounty Highway 3002
Coordinates41.70684, -84.39346
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.1 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width43 ft (13.1 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic976 (2013)
Projected traffic1,601 by 2038
Trucks0%
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 Territorial Road over Woolace Martn Walters DR built?

It was built in 1936, making it 89 years old in 2025.

What condition is Territorial Road over Woolace Martn Walters DR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Territorial Road over Woolace Martn Walters DR carry?

About 976 vehicles per day (2013 count).

How long is Territorial Road over Woolace Martn Walters DR?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 43 ft wide.

Who owns Territorial Road over Woolace Martn Walters DR?

It is owned by the County Highway Agency.