US Bridges

Hilldom Road over Unnamed Stream

Good

Ashtabula County, Ohio · 1.1 Mi. E. of Adams Road · Structure no. 0433985

Built
1993
32 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
285
2015 count
Owner
County
County Highway Agency

About this bridge

Hilldom Road over Unnamed Stream is a prestressed concrete box beam or girders - multiple carrying Hilldom Road over Unnamed Stream in Ashtabula County, Ohio. It was built in 1993, so it is 32 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 285 vehicles a day, roughly 8% of them trucks, projected to reach 396 by 2035. The structure is 28 ft (8.5 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHilldom Road
CrossesUnnamed Stream
Location1.1 Mi. E. of Adams Road
RouteCounty Highway C415B
CountyAshtabula County
StateOhio
Coordinates41.81886, -80.57686
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating72.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 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 Unnamed Stream built?

It was built in 1993, making it 32 years old in 2025.

What condition is Hilldom Road over Unnamed Stream 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 May 2024.

How much traffic does Hilldom Road over Unnamed Stream carry?

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

How long is Hilldom Road over Unnamed Stream?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.

Who owns Hilldom Road over Unnamed Stream?

It is owned by the County Highway Agency.