US Bridges

I-84 TR 821 over SR 501 NB & Trout Brook

Fair

Hartford County, Connecticut · EB On-Ramp from Park Road · Structure no. 01753

Built
1965
60 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
477 ft
6 main spans
Daily traffic
6,400
2021 count
Owner
State
State Highway Agency

About this bridge

I-84 TR 821 over SR 501 NB & Trout Brook is a steel stringer/multi-beam or girder carrying I-84 TR 821 over SR 501 NB & Trout Brook in Hartford 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 6,400 vehicles a day, roughly 9% of them trucks, projected to reach 9,510 by 2041. The structure is 477 ft (145.3 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI-84 TR 821
CrossesSR 501 NB & Trout Brook
LocationEB On-Ramp from Park Road
RouteInterstate 84
Coordinates41.74896, -72.73466
Functional classUrban Principal Arterial - Interstate

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length477 ft (145.3 m)
Longest span90 ft (27.4 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deck14 ft (4.2 m)

Traffic and service

Average daily traffic6,400 (2021)
Projected traffic9,510 by 2041
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-84 TR 821 over SR 501 NB & Trout Brook built?

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

What condition is I-84 TR 821 over SR 501 NB & Trout 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 August 2023.

How much traffic does I-84 TR 821 over SR 501 NB & Trout Brook carry?

About 6,400 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is I-84 TR 821 over SR 501 NB & Trout Brook?

The structure is 477 ft (145.3 m) long with a longest span of 90 ft (27.4 m) and a deck 42 ft wide.

Who owns I-84 TR 821 over SR 501 NB & Trout Brook?

It is owned by the State Highway Agency.