US Bridges

Route 8 over SR 846 Northbound

Fair

New Haven County, Connecticut · 0.6 Miles North of I-84 · Structure no. 01715

Built
1965
60 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
96 ft
1 main span
Daily traffic
72,500
2021 count
Owner
State
State Highway Agency

About this bridge

Route 8 over SR 846 Northbound is a steel stringer/multi-beam or girder carrying Route 8 over SR 846 Northbound in New Haven County, Connecticut. It was built in 1965, so it is 60 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 72,500 vehicles a day, roughly 9% of them trucks, projected to reach 107,728 by 2041. The structure is 96 ft (29.3 m) long and 126 ft wide.

Location

Open in Google Maps
CarriesRoute 8
CrossesSR 846 Northbound
Location0.6 Miles North of I-84
RouteState Highway 8
CountyNew Haven County
StateConnecticut
Coordinates41.55876, -73.05629
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating34.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span87 ft (26.5 m)
Deck width126 ft (38.3 m)
Roadway width120 ft (36.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72,500 (2021)
Projected traffic107,728 by 2041
Trucks9%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 8 over SR 846 Northbound built?

It was built in 1965, making it 60 years old in 2025.

What condition is Route 8 over SR 846 Northbound 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 October 2023.

How much traffic does Route 8 over SR 846 Northbound carry?

About 72,500 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Route 8 over SR 846 Northbound?

The structure is 96 ft (29.3 m) long with a longest span of 87 ft (26.5 m) and a deck 126 ft wide.

Who owns Route 8 over SR 846 Northbound?

It is owned by the State Highway Agency.