US Bridges

SR 503 Eastbound over Parking Lot

Fair

Hartford County, Connecticut · Ramp Sisson Ave to I84 EB · Structure no. 03401A

Built
1969
56 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
342 ft
5 main spans
Daily traffic
10,000
2021 count
Owner
State
State Highway Agency

About this bridge

SR 503 Eastbound over Parking Lot is a steel stringer/multi-beam or girder carrying SR 503 Eastbound over Parking Lot in Hartford County, Connecticut. It was built in 1969, so it is 56 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 10,000 vehicles a day, roughly 9% of them trucks, projected to reach 14,859 by 2041. The structure is 342 ft (104.3 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 503 Eastbound
CrossesParking Lot
LocationRamp Sisson Ave to I84 EB
RouteState Highway 503
CountyHartford County
StateConnecticut
Coordinates41.76221, -72.70151
Functional classUrban Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length342 ft (104.3 m)
Longest span75 ft (22.8 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2021)
Projected traffic14,859 by 2041
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 km)
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 SR 503 Eastbound over Parking Lot built?

It was built in 1969, making it 56 years old in 2025.

What condition is SR 503 Eastbound over Parking Lot 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 SR 503 Eastbound over Parking Lot carry?

About 10,000 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is SR 503 Eastbound over Parking Lot?

The structure is 342 ft (104.3 m) long with a longest span of 75 ft (22.8 m) and a deck 28 ft wide.

Who owns SR 503 Eastbound over Parking Lot?

It is owned by the State Highway Agency.