US Bridges

Amity Pike CR-36 over Big Darby River

Good

Madison County, Ohio · .2 Mi. E. of Co. Rd. 7 · Structure no. 4931637

Built
2009
16 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
289 ft
3 main spans
Daily traffic
1,517
2015 count
Owner
County
County Highway Agency

About this bridge

Amity Pike CR-36 over Big Darby River is a prestressed concrete continuous stringer/multi-beam or girder carrying Amity Pike CR-36 over Big Darby River in Madison County, Ohio. It was built in 2009, so it is 16 years old, younger 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 1,517 vehicles a day, roughly 8% of them trucks, projected to reach 2,106 by 2035. The structure is 289 ft (88.1 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesAmity Pike CR-36
CrossesBig Darby River
Location.2 Mi. E. of Co. Rd. 7
RouteCounty Highway 36
CountyMadison County
StateOhio
Coordinates40.06952, -83.24939
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length289 ft (88.1 m)
Longest span116 ft (35.4 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,517 (2015)
Projected traffic2,106 by 2035
Trucks8%
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 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 Amity Pike CR-36 over Big Darby River built?

It was built in 2009, making it 16 years old in 2025.

What condition is Amity Pike CR-36 over Big Darby 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 January 2025.

How much traffic does Amity Pike CR-36 over Big Darby River carry?

About 1,517 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Amity Pike CR-36 over Big Darby River?

The structure is 289 ft (88.1 m) long with a longest span of 116 ft (35.4 m) and a deck 32 ft wide.

Who owns Amity Pike CR-36 over Big Darby River?

It is owned by the County Highway Agency.