US Bridges

Route 64 over Hop Brook

Fair

New Haven County, Connecticut · 1.5 MI E of Route 188 · Structure no. 00511

Built
1928
97 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete
Length
31 ft
1 main span
Daily traffic
10,000
2020 count
Owner
State
State Highway Agency

About this bridge

Route 64 over Hop Brook is a concrete tee beam carrying Route 64 over Hop Brook in New Haven County, Connecticut. It was built in 1928, so it is 97 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 5 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 10,000 vehicles a day, roughly 4% of them trucks, projected to reach 14,859 by 2040. The structure is 31 ft (9.4 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoute 64
CrossesHop Brook
Location1.5 MI E of Route 188
RouteState Highway 64
CountyNew Haven County
StateConnecticut
Coordinates41.53784, -73.10744
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2020)
Projected traffic14,859 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 64 over Hop Brook built?

It was built in 1928, making it 97 years old in 2025.

What condition is Route 64 over Hop Brook 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 December 2023.

How much traffic does Route 64 over Hop Brook carry?

About 10,000 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Route 64 over Hop Brook?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns Route 64 over Hop Brook?

It is owned by the State Highway Agency.