US Bridges

Hemlock Road over Weeks Drain

Fair

Saginaw County, Michigan · 0.7 MI N of Dice Road · Structure no. 000000000009243

Built
1956
69 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
3,480
2010 count
Owner
County
County Highway Agency

About this bridge

Hemlock Road over Weeks Drain is a steel stringer/multi-beam or girder carrying Hemlock Road over Weeks Drain in Saginaw County, Michigan. It was built in 1956, so it is 69 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 3,480 vehicles a day, roughly 5% of them trucks, projected to reach 3,654 by 2020. The structure is 40 ft (12.2 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesHemlock Road
CrossesWeeks Drain
Location0.7 MI N of Dice Road
RouteCounty Highway 7323
Coordinates43.47828, -84.23032
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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.1 US tons
Inventory rating29.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span37 ft (11.2 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,480 (2010)
Projected traffic3,654 by 2020
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hemlock Road over Weeks Drain built?

It was built in 1956, making it 69 years old in 2025.

What condition is Hemlock Road over Weeks Drain 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 September 2024.

How much traffic does Hemlock Road over Weeks Drain carry?

About 3,480 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Hemlock Road over Weeks Drain?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.2 m) and a deck 30 ft wide.

Who owns Hemlock Road over Weeks Drain?

It is owned by the County Highway Agency.