US Bridges

Route 2 over Dark Hollow Brook

Good

Hartford County, Connecticut · 1.3 MI W of Marlboro Tl · Structure no. 01856

Built
1964
61 years old
Condition
Good
inspected March 2022
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
47,400
2018 count
Owner
State
State Highway Agency

About this bridge

Route 2 over Dark Hollow Brook is a concrete continuous culvert carrying Route 2 over Dark Hollow Brook in Hartford County, Connecticut. It was built in 1964, so it is 61 years old, older 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 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 47,400 vehicles a day, roughly 6% of them trucks, projected to reach 70,432 by 2038. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 11.2 mi (18 km).

CarriesRoute 2
CrossesDark Hollow Brook
Location1.3 MI W of Marlboro Tl
RouteState Highway 2
Coordinates41.66208, -72.52357
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,400 (2018)
Projected traffic70,432 by 2038
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemYes

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 Route 2 over Dark Hollow Brook built?

It was built in 1964, making it 61 years old in 2025.

What condition is Route 2 over Dark Hollow Brook 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 March 2022.

How much traffic does Route 2 over Dark Hollow Brook carry?

About 47,400 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Route 2 over Dark Hollow Brook?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Route 2 over Dark Hollow Brook?

It is owned by the State Highway Agency.