US Bridges

Merrill Road over Weeks Drain

Fair

Saginaw County, Michigan · 0.8 MI N of Ohara Road · Structure no. 000000000009236

Built
1993
32 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
1,202
2010 count
Owner
County
County Highway Agency

About this bridge

Merrill Road over Weeks Drain is a concrete culvert carrying Merrill Road over Weeks Drain in Saginaw County, Michigan. It was built in 1993, so it is 32 years old, younger 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 1,202 vehicles a day, roughly 5% of them trucks, projected to reach 1,262 by 2020. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMerrill Road
CrossesWeeks Drain
Location0.8 MI N of Ohara Road
RouteCounty Highway 0
Coordinates43.44496, -84.33053
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.3 US tons
Inventory rating46.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,202 (2010)
Projected traffic1,262 by 2020
Trucks5%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Merrill Road over Weeks Drain built?

It was built in 1993, making it 32 years old in 2025.

What condition is Merrill 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 August 2023.

How much traffic does Merrill Road over Weeks Drain carry?

About 1,202 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Merrill Road over Weeks Drain?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns Merrill Road over Weeks Drain?

It is owned by the County Highway Agency.