US Bridges

I-91 TR 806 over INTERSTATE-91

Fair

New Haven County, Connecticut · .30M N of NB JCT NB RTE40 · Structure no. 03407

Built
1972
53 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
265 ft
2 main spans
Daily traffic
7,200
2012 count
Owner
State
State Highway Agency

About this bridge

I-91 TR 806 over INTERSTATE-91 is a steel stringer/multi-beam or girder carrying I-91 TR 806 over INTERSTATE-91 in New Haven County, Connecticut. It was built in 1972, so it is 53 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 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 7,200 vehicles a day, roughly 9% of them trucks, projected to reach 10,698 by 2032. The structure is 265 ft (80.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-91 TR 806
CrossesINTERSTATE-91
Location.30M N of NB JCT NB RTE40
RouteInterstate 91
CountyNew Haven County
StateConnecticut
Coordinates41.376, -72.8691
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
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.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.4 US tons
Inventory rating19.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length265 ft (80.8 m)
Longest span127 ft (38.7 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,200 (2012)
Projected traffic10,698 by 2032
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-91 TR 806 over INTERSTATE-91 built?

It was built in 1972, making it 53 years old in 2025.

What condition is I-91 TR 806 over INTERSTATE-91 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 March 2023.

How much traffic does I-91 TR 806 over INTERSTATE-91 carry?

About 7,200 vehicles per day (2012 count), of which roughly 9% are trucks.

How long is I-91 TR 806 over INTERSTATE-91?

The structure is 265 ft (80.8 m) long with a longest span of 127 ft (38.7 m) and a deck 44 ft wide.

Who owns I-91 TR 806 over INTERSTATE-91?

It is owned by the State Highway Agency.