US Bridges

Route 20 over Hubbard Brook

Fair

Hartford County, Connecticut · 3.66 M W of Route 179 · Structure no. 00876

Built
1940
85 years old
Condition
Fair
inspected June 2023
Type
Arch - Deck
Concrete
Length
46 ft
1 main span
Daily traffic
450
2021 count
Owner
State
State Highway Agency

About this bridge

Route 20 over Hubbard Brook is a concrete arch - deck carrying Route 20 over Hubbard Brook in Hartford County, Connecticut. It was built in 1940, so it is 85 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 450 vehicles a day, roughly 5% of them trucks, projected to reach 669 by 2041. The structure is 46 ft (14 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesRoute 20
CrossesHubbard Brook
Location3.66 M W of Route 179
RouteState Highway 20
CountyHartford County
StateConnecticut
Coordinates42.03496, -72.93806
Functional classRural Major 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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span46 ft (14 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2021)
Projected traffic669 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 20 over Hubbard Brook built?

It was built in 1940, making it 85 years old in 2025.

What condition is Route 20 over Hubbard 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 June 2023.

How much traffic does Route 20 over Hubbard Brook carry?

About 450 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Route 20 over Hubbard Brook?

The structure is 46 ft (14 m) long with a longest span of 46 ft (14 m).

Who owns Route 20 over Hubbard Brook?

It is owned by the State Highway Agency.