US Bridges

Aqueduct Road over Saint Marys River

Good

Auglaize County, Ohio · 500 S of Greenville Road · Structure no. 0635677

Built
1976
49 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
150 ft
3 main spans
Daily traffic
797
2015 count
Owner
County
County Highway Agency

About this bridge

Aqueduct Road over Saint Marys River is a prestressed concrete box beam or girders - multiple carrying Aqueduct Road over Saint Marys River in Auglaize County, Ohio. It was built in 1976, so it is 49 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 797 vehicles a day, roughly 8% of them trucks, projected to reach 1,106 by 2045. The structure is 150 ft (45.8 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesAqueduct Road
CrossesSaint Marys River
Location500 S of Greenville Road
RouteCounty Highway 53
StateOhio
Coordinates40.53509, -84.37726
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating28.5 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length150 ft (45.8 m)
Longest span48 ft (14.6 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic797 (2015)
Projected traffic1,106 by 2045
Trucks8%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Aqueduct Road over Saint Marys River built?

It was built in 1976, making it 49 years old in 2025.

What condition is Aqueduct Road over Saint Marys River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Aqueduct Road over Saint Marys River carry?

About 797 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Aqueduct Road over Saint Marys River?

The structure is 150 ft (45.8 m) long with a longest span of 48 ft (14.6 m) and a deck 35 ft wide.

Who owns Aqueduct Road over Saint Marys River?

It is owned by the County Highway Agency.