US Bridges

John Street over East Branch Byram River

Fair

Fairfield County, Connecticut · 1 Mile W Round Hill RD · Structure no. 06855

Built
2013
12 years old
Condition
Fair
inspected May 2023
Type
Frame
Concrete
Length
28 ft
1 main span
Daily traffic
1,725
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

John Street over East Branch Byram River is a concrete frame carrying John Street over East Branch Byram River in Fairfield County, Connecticut. It was built in 2013, so it is 12 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 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 1,725 vehicles a day, roughly 5% of them trucks, projected to reach 2,563 by 2043. The structure is 28 ft (8.5 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesJohn Street
CrossesEast Branch Byram River
Location1 Mile W Round Hill RD
RouteCity Street 0
Coordinates41.09917, -73.68308
Functional classRural Local

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.8 US tons
Inventory rating48.6 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width32 ft (9.9 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,725 (2023)
Projected traffic2,563 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 John Street over East Branch Byram River built?

It was built in 2013, making it 12 years old in 2025.

What condition is John Street over East Branch Byram River 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 May 2023.

How much traffic does John Street over East Branch Byram River carry?

About 1,725 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is John Street over East Branch Byram River?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 32 ft wide.

Who owns John Street over East Branch Byram River?

It is owned by the Town or Township Highway Agency.