US Bridges

SR 266 over Mill Run

Good

Morgan County, Ohio · 3.4 MI East of JCT SR376 · Structure no. 5810000

Built
2018
7 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
132 ft
3 main spans
Daily traffic
600
2016 count
Owner
State
State Highway Agency

About this bridge

SR 266 over Mill Run is a concrete continuous slab carrying SR 266 over Mill Run in Morgan County, Ohio. It was built in 2018, so it is 7 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 600 vehicles a day, roughly 3% of them trucks, projected to reach 600 by 2036. The structure is 132 ft (40.2 m) long and 31 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesSR 266
CrossesMill Run
Location3.4 MI East of JCT SR376
RouteState Highway 266
StateOhio
Coordinates39.53643, -81.74997
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating16.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHL 93
Structure length132 ft (40.2 m)
Longest span50 ft (15.2 m)
Deck width31 ft (9.6 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2016)
Projected traffic600 by 2036
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 266 over Mill Run built?

It was built in 2018, making it 7 years old in 2025.

What condition is SR 266 over Mill Run 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 August 2024.

How much traffic does SR 266 over Mill Run carry?

About 600 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is SR 266 over Mill Run?

The structure is 132 ft (40.2 m) long with a longest span of 50 ft (15.2 m) and a deck 31 ft wide.

Who owns SR 266 over Mill Run?

It is owned by the State Highway Agency.