US Bridges

Territorial Road over Silver Creek

Good

Hillsdale County, Michigan · 0.2 MI E of Crampton RD · Structure no. 000000000003279

Built
2007
18 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
1,109
2013 count
Owner
County
County Highway Agency

About this bridge

Territorial Road over Silver Creek is a prestressed concrete box beam or girders - multiple carrying Territorial Road over Silver Creek in Hillsdale County, Michigan. It was built in 2007, so it is 18 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 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 1,109 vehicles a day, roughly 4% of them trucks, projected to reach 1,819 by 2038. The structure is 61 ft (18.7 m) long and 44 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesTerritorial Road
CrossesSilver Creek
Location0.2 MI E of Crampton RD
RouteCounty Highway 3002
Coordinates41.70921, -84.56957
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating104.4 US tons
Inventory rating62.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length61 ft (18.7 m)
Longest span57 ft (17.5 m)
Deck width44 ft (13.3 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,109 (2013)
Projected traffic1,819 by 2038
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Silver Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Territorial Road over Silver 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 November 2024.

How much traffic does Territorial Road over Silver Creek carry?

About 1,109 vehicles per day (2013 count), of which roughly 4% are trucks.

How long is Territorial Road over Silver Creek?

The structure is 61 ft (18.7 m) long with a longest span of 57 ft (17.5 m) and a deck 44 ft wide.

Who owns Territorial Road over Silver Creek?

It is owned by the County Highway Agency.