US Bridges

Center Street over Harbor Brook

PoorClosed to traffic

New Haven County, Connecticut · 250 Ft No of Pratt Street · Structure no. 04185

Built
1871
154 years old
Condition
Poor
inspected September 2024
Type
Arch - Deck
Masonry
Length
25 ft
1 main span
Daily traffic
6,186
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Center Street over Harbor Brook is a masonry arch - deck carrying Center Street over Harbor Brook in New Haven County, Connecticut. It was built in 1871, so it is 154 years old, older than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 6,186 vehicles a day, roughly 6% of them trucks, projected to reach 9,192 by 2043. The structure is 25 ft (7.6 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCenter Street
CrossesHarbor Brook
Location250 Ft No of Pratt Street
RouteCity Street 0
Coordinates41.5411, -72.79366
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width49 ft (15 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,186 (2023)
Projected traffic9,192 by 2043
Trucks6%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Center Street over Harbor Brook built?

It was built in 1871, making it 154 years old in 2025.

What condition is Center Street over Harbor Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Center Street over Harbor Brook carry?

About 6,186 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Center Street over Harbor Brook?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 49 ft wide.

Who owns Center Street over Harbor Brook?

It is owned by the City or Municipal Highway Agency.