US Bridges

Jeddo Road over Mill Creek

Fair

St. Clair County, Michigan · Sec. 3-10 Brockway Twp · Structure no. 000000000010121

Built
1940
85 years old, rebuilt 2018
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
64 ft
1 main span
Daily traffic
444
2021 count
Owner
County
County Highway Agency

About this bridge

Jeddo Road over Mill Creek is a steel stringer/multi-beam or girder carrying Jeddo Road over Mill Creek in St. Clair County, Michigan. It was built in 1940 and reconstructed in 2018, so it is 85 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.

It carries about 444 vehicles a day, roughly 4% of them trucks, projected to reach 659 by 2041. The structure is 64 ft (19.4 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesJeddo Road
CrossesMill Creek
LocationSec. 3-10 Brockway Twp
RouteCounty Highway 0
CountySt. Clair County
StateMichigan
Coordinates43.14404, -82.81836
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadGreater than HL 93
Structure length64 ft (19.4 m)
Longest span59 ft (18.1 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic444 (2021)
Projected traffic659 by 2041
Trucks4%
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$452 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Jeddo Road over Mill Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2018.

What condition is Jeddo Road over Mill Creek 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 Jeddo Road over Mill Creek carry?

About 444 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Jeddo Road over Mill Creek?

The structure is 64 ft (19.4 m) long with a longest span of 59 ft (18.1 m) and a deck 29 ft wide.

Who owns Jeddo Road over Mill Creek?

It is owned by the County Highway Agency.