US Bridges

Hilldom Road over Ashtabula River

Good

Ashtabula County, Ohio · .1 Mi. E. of CH33 · Structure no. 0432695

Built
1950
75 years old
Condition
Good
inspected April 2024
Type
Truss - Thru
Steel
Length
81 ft
1 main span
Daily traffic
285
2015 count
Owner
County
County Highway Agency

About this bridge

Hilldom Road over Ashtabula River is a steel truss - thru carrying Hilldom Road over Ashtabula River in Ashtabula County, Ohio. It was built in 1950, so it is 75 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 285 vehicles a day, roughly 8% of them trucks, projected to reach 396 by 2035. The structure is 81 ft (24.7 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHilldom Road
CrossesAshtabula River
Location.1 Mi. E. of CH33
RouteCounty Highway C415A
CountyAshtabula County
StateOhio
Coordinates41.81798, -80.62321
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.8 US tons
Inventory rating40 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span76 ft (23.2 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic285 (2015)
Projected traffic396 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

OwnerCounty Highway Agency
Maintained byCounty 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 Hilldom Road over Ashtabula River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Hilldom Road over Ashtabula River 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 April 2024.

How much traffic does Hilldom Road over Ashtabula River carry?

About 285 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Hilldom Road over Ashtabula River?

The structure is 81 ft (24.7 m) long with a longest span of 76 ft (23.2 m) and a deck 24 ft wide.

Who owns Hilldom Road over Ashtabula River?

It is owned by the County Highway Agency.