US Bridges

Spencer RD over US-23

Fair

Livingston County, Michigan · 0.9 MI N of I-96 · Structure no. 000000000005745

Built
1962
63 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
239 ft
4 main spans
Daily traffic
1,580
1995 count
Owner
State
State Highway Agency

About this bridge

Spencer RD over US-23 is a steel stringer/multi-beam or girder carrying Spencer RD over US-23 in Livingston County, Michigan. It was built in 1962, so it is 63 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,580 vehicles a day, roughly 3% of them trucks, projected to reach 1,580 by 2015. The structure is 239 ft (72.7 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSpencer RD
CrossesUS-23
Location0.9 MI N of I-96
RouteCounty Highway 0
CountyLivingston County
StateMichigan
Coordinates42.53762, -83.74969
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.2 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length239 ft (72.7 m)
Longest span74 ft (22.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,580 (1995)
Projected traffic1,580 by 2015
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Spencer RD over US-23 built?

It was built in 1962, making it 63 years old in 2025.

What condition is Spencer RD over US-23 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Spencer RD over US-23 carry?

About 1,580 vehicles per day (1995 count), of which roughly 3% are trucks.

How long is Spencer RD over US-23?

The structure is 239 ft (72.7 m) long with a longest span of 74 ft (22.6 m) and a deck 35 ft wide.

Who owns Spencer RD over US-23?

It is owned by the State Highway Agency.