US Bridges

SR 604 over Over ASD-071 -1559

Good

Ashland County, Ohio · Over I-71 · Structure no. 0306126

Built
1959
66 years old, rebuilt 2009
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
405 ft
4 main spans
Daily traffic
375
2015 count
Owner
State
State Highway Agency

About this bridge

SR 604 over Over ASD-071 -1559 is a steel continuous stringer/multi-beam or girder carrying SR 604 over Over ASD-071 -1559 in Ashland County, Ohio. It was built in 1959 and reconstructed in 2009, so it is 66 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 375 vehicles a day, roughly 8% of them trucks, projected to reach 521 by 2035. The structure is 405 ft (123.5 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 604
CrossesOver ASD-071 -1559
LocationOver I-71
RouteState Highway 604
CountyAshland County
StateOhio
Coordinates40.91529, -82.13587
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.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length405 ft (123.5 m)
Longest span120 ft (36.7 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2015)
Projected traffic521 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$40,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 604 over Over ASD-071 -1559 built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2009.

What condition is SR 604 over Over ASD-071 -1559 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 604 over Over ASD-071 -1559 carry?

About 375 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is SR 604 over Over ASD-071 -1559?

The structure is 405 ft (123.5 m) long with a longest span of 120 ft (36.7 m) and a deck 35 ft wide.

Who owns SR 604 over Over ASD-071 -1559?

It is owned by the State Highway Agency.