US Bridges

Route 120 over Misery Brook

Good

Hartford County, Connecticut · 1.5 MI N of Route 322 · Structure no. 01326

Built
1963
62 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete Continuous
Length
20 ft
2 main spans
Daily traffic
7,200
2021 count
Owner
State
State Highway Agency

About this bridge

Route 120 over Misery Brook is a concrete continuous culvert carrying Route 120 over Misery Brook in Hartford County, Connecticut. It was built in 1963, so it is 62 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 7,200 vehicles a day, roughly 3% of them trucks, projected to reach 10,698 by 2041. The structure is 20 ft (6.1 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 120
CrossesMisery Brook
Location1.5 MI N of Route 322
RouteState Highway 120
Coordinates41.57572, -72.86493
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.9 US tons
Inventory rating56.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckOther
Main spans2
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span10 ft (3 m)
Deck width52 ft (15.9 m)
Roadway width42 ft (12.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,200 (2021)
Projected traffic10,698 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 120 over Misery Brook built?

It was built in 1963, making it 62 years old in 2025.

What condition is Route 120 over Misery 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 December 2023.

How much traffic does Route 120 over Misery Brook carry?

About 7,200 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Route 120 over Misery Brook?

The structure is 20 ft (6.1 m) long with a longest span of 10 ft (3 m) and a deck 52 ft wide.

Who owns Route 120 over Misery Brook?

It is owned by the State Highway Agency.