US Bridges

SR 104 over Dry Run

Fair

Ross County, Ohio · 1.27 MI N of JCT SR 207 · Structure no. 7103816

Built
1941
84 years old, rebuilt 1978
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
74 ft
3 main spans
Daily traffic
5,254
2015 count
Owner
State
State Highway Agency

About this bridge

SR 104 over Dry Run is a concrete continuous slab carrying SR 104 over Dry Run in Ross County, Ohio. It was built in 1941 and reconstructed in 1978, so it is 84 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 5,254 vehicles a day, roughly 8% of them trucks, projected to reach 7,293 by 2035. The structure is 74 ft (22.6 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR 104
CrossesDry Run
Location1.27 MI N of JCT SR 207
RouteState Highway 104
CountyRoss County
StateOhio
Coordinates39.41473, -83.01087
Functional classRural Major 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 inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating42.9 US tons
Inventory rating32.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span26 ft (7.9 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,254 (2015)
Projected traffic7,293 by 2035
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

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 104 over Dry Run built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1978.

What condition is SR 104 over Dry Run 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 November 2024.

How much traffic does SR 104 over Dry Run carry?

About 5,254 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is SR 104 over Dry Run?

The structure is 74 ft (22.6 m) long with a longest span of 26 ft (7.9 m) and a deck 32 ft wide.

Who owns SR 104 over Dry Run?

It is owned by the State Highway Agency.