US Bridges

Curtis Road over Spaulding Drain

Fair

Saginaw County, Michigan · 50 Ft E of Ambrose Road · Structure no. 000000000009216

Built
1991
34 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
320 ft
4 main spans
Daily traffic
173
2007 count
Owner
County
County Highway Agency

About this bridge

Curtis Road over Spaulding Drain is a prestressed concrete box beam or girders - multiple carrying Curtis Road over Spaulding Drain in Saginaw County, Michigan. It was built in 1991, so it is 34 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 173 vehicles a day, roughly 5% of them trucks, projected to reach 182 by 2017. The structure is 320 ft (97.5 m) long and 31 ft wide. If it were closed, the detour would be 198.8 mi (320 km).

CarriesCurtis Road
CrossesSpaulding Drain
Location50 Ft E of Ambrose Road
RouteCounty Highway 0
Coordinates43.32193, -84.00134
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.1 US tons
Inventory rating43.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20 + Mod
Structure length320 ft (97.5 m)
Longest span80 ft (24.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic173 (2007)
Projected traffic182 by 2017
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed198.8 mi (320 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 Curtis Road over Spaulding Drain built?

It was built in 1991, making it 34 years old in 2025.

What condition is Curtis Road over Spaulding 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 May 2023.

How much traffic does Curtis Road over Spaulding Drain carry?

About 173 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is Curtis Road over Spaulding Drain?

The structure is 320 ft (97.5 m) long with a longest span of 80 ft (24.4 m) and a deck 31 ft wide.

Who owns Curtis Road over Spaulding Drain?

It is owned by the County Highway Agency.