US Bridges

Airport Perim. RD over Ssr 401

Fair

Hartford County, Connecticut · At East Granby Town Line · Structure no. 01599

Built
1961
64 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
187 ft
2 main spans
Daily traffic
111
2023 count
Owner
State
State Highway Agency

About this bridge

Airport Perim. RD over Ssr 401 is a steel stringer/multi-beam or girder carrying Airport Perim. RD over Ssr 401 in Hartford County, Connecticut. It was built in 1961, so it is 64 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 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 111 vehicles a day, projected to reach 165 by 2043. The structure is 187 ft (57.1 m) long and 36 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesAirport Perim. RD
CrossesSsr 401
LocationAt East Granby Town Line
RouteCity Street 0
CountyHartford County
StateConnecticut
Coordinates41.92803, -72.69473
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length187 ft (57.1 m)
Longest span90 ft (27.4 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic111 (2023)
Projected traffic165 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

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 Airport Perim. RD over Ssr 401 built?

It was built in 1961, making it 64 years old in 2025.

What condition is Airport Perim. RD over Ssr 401 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 June 2023.

How much traffic does Airport Perim. RD over Ssr 401 carry?

About 111 vehicles per day (2023 count).

How long is Airport Perim. RD over Ssr 401?

The structure is 187 ft (57.1 m) long with a longest span of 90 ft (27.4 m) and a deck 36 ft wide.

Who owns Airport Perim. RD over Ssr 401?

It is owned by the State Highway Agency.