US Bridges

Mccaslin Road over Shiawassee River

FairPosted for load

Genesee County, Michigan · Bet Silver Lake & Rolston · Structure no. 000000000002764

Built
1932
93 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
827
2012 count
Owner
County
County Highway Agency

About this bridge

Mccaslin Road over Shiawassee River is a steel stringer/multi-beam or girder carrying Mccaslin Road over Shiawassee River in Genesee County, Michigan. It was built in 1932, so it is 93 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. Its operating status is: posted for load restriction.

It carries about 827 vehicles a day, roughly 5% of them trucks, projected to reach 1,494 by 2032. The structure is 45 ft (13.7 m) long and 30 ft wide.

Location

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CarriesMccaslin Road
CrossesShiawassee River
LocationBet Silver Lake & Rolston
RouteCounty Highway 0
CountyGenesee County
StateMichigan
Coordinates42.80407, -83.85456
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length45 ft (13.7 m)
Longest span43 ft (13.1 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic827 (2012)
Projected traffic1,494 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Mccaslin Road over Shiawassee River built?

It was built in 1932, making it 93 years old in 2025.

What condition is Mccaslin Road over Shiawassee River 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 November 2024.

How much traffic does Mccaslin Road over Shiawassee River carry?

About 827 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is Mccaslin Road over Shiawassee River?

The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 30 ft wide.

Who owns Mccaslin Road over Shiawassee River?

It is owned by the County Highway Agency.