US Bridges

SR 329 over Marietta Run

Good

Athens County, Ohio · 4.3M N of JCT SR 550 · Structure no. 0503517

Built
1961
64 years old, rebuilt 2011
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
93 ft
3 main spans
Daily traffic
425
2018 count
Owner
State
State Highway Agency

About this bridge

SR 329 over Marietta Run is a concrete continuous slab carrying SR 329 over Marietta Run in Athens County, Ohio. It was built in 1961 and reconstructed in 2011, so it is 64 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 425 vehicles a day, roughly 4% of them trucks, projected to reach 590 by 2038. The structure is 93 ft (28.3 m) long and 36 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesSR 329
CrossesMarietta Run
Location4.3M N of JCT SR 550
RouteState Highway 329
StateOhio
Coordinates39.36816, -81.88005
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length93 ft (28.3 m)
Longest span35 ft (10.7 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic425 (2018)
Projected traffic590 by 2038
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 329 over Marietta Run built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2011.

What condition is SR 329 over Marietta 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 June 2024.

How much traffic does SR 329 over Marietta Run carry?

About 425 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is SR 329 over Marietta Run?

The structure is 93 ft (28.3 m) long with a longest span of 35 ft (10.7 m) and a deck 36 ft wide.

Who owns SR 329 over Marietta Run?

It is owned by the State Highway Agency.