US Bridges

Route 74 over Hockanum River

Fair

Tolland County, Connecticut · .5 Mile East of Route 31 · Structure no. 01868

Built
1938
87 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
2,200
2020 count
Owner
State
State Highway Agency

About this bridge

Route 74 over Hockanum River is a concrete slab carrying Route 74 over Hockanum River in Tolland County, Connecticut. It was built in 1938, so it is 87 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 2,200 vehicles a day, roughly 3% of them trucks, projected to reach 3,269 by 2040. The structure is 29 ft (8.8 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 74
CrossesHockanum River
Location.5 Mile East of Route 31
RouteState Highway 74
Coordinates41.86795, -72.43342
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.6 US tons
Inventory rating53.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width39 ft (11.9 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2020)
Projected traffic3,269 by 2040
Trucks3%
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

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 74 over Hockanum River built?

It was built in 1938, making it 87 years old in 2025.

What condition is Route 74 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 July 2023.

How much traffic does Route 74 over Hockanum River carry?

About 2,200 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Route 74 over Hockanum River?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 39 ft wide.

Who owns Route 74 over Hockanum River?

It is owned by the State Highway Agency.