US Bridges

Dart Hill Road over Hockanum River

Good

Tolland County, Connecticut · 1000 Ft West of Route 83 · Structure no. 03936

Built
2023
2 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
4,700
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Dart Hill Road over Hockanum River is a prestressed concrete box beam or girders - multiple carrying Dart Hill Road over Hockanum River in Tolland County, Connecticut. It was built in 2023, so it is 2 years old, younger than the Connecticut average of 56.7 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 4,700 vehicles a day, roughly 2% of them trucks, projected to reach 6,984 by 2040. The structure is 51 ft (15.5 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesDart Hill Road
CrossesHockanum River
Location1000 Ft West of Route 83
RouteCity Street 0
Coordinates41.85038, -72.48832
Functional classUrban 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68.6 US tons
Inventory rating52.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length51 ft (15.5 m)
Longest span46 ft (14.1 m)
Deck width39 ft (11.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2020)
Projected traffic6,984 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Dart Hill Road over Hockanum River built?

It was built in 2023, making it 2 years old in 2025.

What condition is Dart Hill Road over Hockanum 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 October 2023.

How much traffic does Dart Hill Road over Hockanum River carry?

About 4,700 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Dart Hill Road over Hockanum River?

The structure is 51 ft (15.5 m) long with a longest span of 46 ft (14.1 m) and a deck 39 ft wide.

Who owns Dart Hill Road over Hockanum River?

It is owned by the Town or Township Highway Agency.