US Bridges

Forbes Street over Hockanum River

Fair

Hartford County, Connecticut · 120 Ft FR JCT Goodwin LA · Structure no. 04496

Built
1904
121 years old, rebuilt 1996
Condition
Fair
inspected March 2023
Type
Arch - Deck
Concrete
Length
92 ft
1 main span
Daily traffic
6,700
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Forbes Street over Hockanum River is a concrete arch - deck carrying Forbes Street over Hockanum River in Hartford County, Connecticut. It was built in 1904 and reconstructed in 1996, so it is 121 years old, older than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 6,700 vehicles a day, roughly 4% of them trucks, projected to reach 9,956 by 2038. The structure is 92 ft (28 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesForbes Street
CrossesHockanum River
Location120 Ft FR JCT Goodwin LA
RouteCity Street 0
Coordinates41.77586, -72.60732
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating100.3 US tons
Inventory rating77.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length92 ft (28 m)
Longest span92 ft (28 m)
Deck width33 ft (10.2 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,700 (2018)
Projected traffic9,956 by 2038
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Forbes Street over Hockanum River built?

It was built in 1904, making it 121 years old in 2025. It was reconstructed in 1996.

What condition is Forbes Street over Hockanum River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does Forbes Street over Hockanum River carry?

About 6,700 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Forbes Street over Hockanum River?

The structure is 92 ft (28 m) long with a longest span of 92 ft (28 m) and a deck 33 ft wide.

Who owns Forbes Street over Hockanum River?

It is owned by the Town or Township Highway Agency.