US Bridges

SR 666 over Over Symmes Creek

Fair

Muskingum County, Ohio · 4.5 MI S of JCT SR 208 · Structure no. 6006728

Built
1976
49 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
165 ft
4 main spans
Daily traffic
525
2015 count
Owner
State
State Highway Agency

About this bridge

SR 666 over Over Symmes Creek is a concrete continuous slab carrying SR 666 over Over Symmes Creek in Muskingum 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 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 525 vehicles a day, roughly 1% of them trucks, projected to reach 729 by 2035. The structure is 165 ft (50.3 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 666
CrossesOver Symmes Creek
Location4.5 MI S of JCT SR 208
RouteState Highway 666
CountyMuskingum County
StateOhio
Coordinates40.07389, -81.96988
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length165 ft (50.3 m)
Longest span45 ft (13.7 m)
Deck width37 ft (11.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic525 (2015)
Projected traffic729 by 2035
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 666 over Over Symmes Creek built?

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

What condition is SR 666 over Over Symmes Creek 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 June 2024.

How much traffic does SR 666 over Over Symmes Creek carry?

About 525 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is SR 666 over Over Symmes Creek?

The structure is 165 ft (50.3 m) long with a longest span of 45 ft (13.7 m) and a deck 37 ft wide.

Who owns SR 666 over Over Symmes Creek?

It is owned by the State Highway Agency.