US Bridges

Mason Road over West Br Red Cedar River

Good

Livingston County, Michigan · Handy Twp Sec 31 · Structure no. 000000000005813

Built
2006
19 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
2,690
2015 count
Owner
County
County Highway Agency

About this bridge

Mason Road over West Br Red Cedar River is a prestressed concrete box beam or girders - multiple carrying Mason Road over West Br Red Cedar River in Livingston County, Michigan. It was built in 2006, so it is 19 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 2,690 vehicles a day, roughly 14% of them trucks, projected to reach 2,830 by 2035. The structure is 50 ft (15.2 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMason Road
CrossesWest Br Red Cedar River
LocationHandy Twp Sec 31
RouteCounty Highway 4750
Coordinates42.59946, -84.13082
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 inspectionSeptember 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating71.4 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,690 (2015)
Projected traffic2,830 by 2035
Trucks14%
Lanes on structure2
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 Mason Road over West Br Red Cedar River built?

It was built in 2006, making it 19 years old in 2025.

What condition is Mason Road over West Br Red Cedar 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 September 2023.

How much traffic does Mason Road over West Br Red Cedar River carry?

About 2,690 vehicles per day (2015 count), of which roughly 14% are trucks.

How long is Mason Road over West Br Red Cedar River?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 44 ft wide.

Who owns Mason Road over West Br Red Cedar River?

It is owned by the County Highway Agency.