US Bridges

Columbus Avenue over Harbor Brook

Fair

New Haven County, Connecticut · 280 Ft S of Hanover ST · Structure no. 06238

Built
1992
33 years old
Condition
Fair
inspected February 2024
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
600
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Columbus Avenue over Harbor Brook is a prestressed concrete slab carrying Columbus Avenue over Harbor Brook in New Haven County, Connecticut. It was built in 1992, so it is 33 years old, younger 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 600 vehicles a day, roughly 5% of them trucks, projected to reach 892 by 2039. The structure is 38 ft (11.6 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesColumbus Avenue
CrossesHarbor Brook
Location280 Ft S of Hanover ST
RouteCity Street 0
CountyNew Haven County
StateConnecticut
Coordinates41.53269, -72.81452
Functional classUrban Collector

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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating63.3 US tons
Inventory rating37.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span34 ft (10.4 m)
Deck width54 ft (16.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2019)
Projected traffic892 by 2039
Trucks5%
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 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 Columbus Avenue over Harbor Brook built?

It was built in 1992, making it 33 years old in 2025.

What condition is Columbus Avenue over Harbor 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 February 2024.

How much traffic does Columbus Avenue over Harbor Brook carry?

About 600 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Columbus Avenue over Harbor Brook?

The structure is 38 ft (11.6 m) long with a longest span of 34 ft (10.4 m) and a deck 54 ft wide.

Who owns Columbus Avenue over Harbor Brook?

It is owned by the City or Municipal Highway Agency.