US Bridges

Paldi Road over Speaker-Maple Valley Drn

FairPosted for load

Sanilac County, Michigan · Sec 21 Elk Twp · Structure no. 000000000009600

Built
1969
56 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
200
2010 count
Owner
County
County Highway Agency

About this bridge

Paldi Road over Speaker-Maple Valley Drn is a steel stringer/multi-beam or girder carrying Paldi Road over Speaker-Maple Valley Drn in Sanilac County, Michigan. It was built in 1969, so it is 56 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 6 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 360 by 2030. The structure is 33 ft (10.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesPaldi Road
CrossesSpeaker-Maple Valley Drn
LocationSec 21 Elk Twp
RouteCounty Highway 0
CountySanilac County
StateMichigan
Coordinates43.27963, -82.83849
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment6: Equal to present minimum criteria
Operating rating25.4 US tons
Inventory rating15.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length33 ft (10.2 m)
Longest span31 ft (9.6 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2010)
Projected traffic360 by 2030
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$275,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Paldi Road over Speaker-Maple Valley Drn built?

It was built in 1969, making it 56 years old in 2025.

What condition is Paldi Road over Speaker-Maple Valley Drn 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 July 2024.

How much traffic does Paldi Road over Speaker-Maple Valley Drn carry?

About 200 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is Paldi Road over Speaker-Maple Valley Drn?

The structure is 33 ft (10.2 m) long with a longest span of 31 ft (9.6 m) and a deck 28 ft wide.

Who owns Paldi Road over Speaker-Maple Valley Drn?

It is owned by the County Highway Agency.