US Bridges

Fred Moore HWY over Pine River

Good

St. Clair County, Michigan · Pvt Clm 306 ST Clair Twp · Structure no. 000000000010042

Built
1960
65 years old, rebuilt 2005
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
180 ft
3 main spans
Daily traffic
12,110
2005 count
Owner
County
County Highway Agency

About this bridge

Fred Moore HWY over Pine River is a steel continuous stringer/multi-beam or girder carrying Fred Moore HWY over Pine River in St. Clair County, Michigan. It was built in 1960 and reconstructed in 2005, so it is 65 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 12,110 vehicles a day, roughly 9% of them trucks, projected to reach 16,954 by 2023. The structure is 180 ft (54.9 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFred Moore HWY
CrossesPine River
LocationPvt Clm 306 ST Clair Twp
RouteCounty Highway 7742
Coordinates42.81722, -82.51076
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating91.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length180 ft (54.9 m)
Longest span60 ft (18.3 m)
Deck width40 ft (12.1 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,110 (2005)
Projected traffic16,954 by 2023
Trucks9%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Fred Moore HWY over Pine River built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2005.

What condition is Fred Moore HWY over Pine River 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 2023.

How much traffic does Fred Moore HWY over Pine River carry?

About 12,110 vehicles per day (2005 count), of which roughly 9% are trucks.

How long is Fred Moore HWY over Pine River?

The structure is 180 ft (54.9 m) long with a longest span of 60 ft (18.3 m) and a deck 40 ft wide.

Who owns Fred Moore HWY over Pine River?

It is owned by the County Highway Agency.