US Bridges

Bailiwick Road over Byram River

Good

Fairfield County, Connecticut · Riversville & Bailiwick · Structure no. 05491

Built
1955
70 years old, rebuilt 2018
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
59 ft
1 main span
Daily traffic
675
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Bailiwick Road over Byram River is a steel stringer/multi-beam or girder carrying Bailiwick Road over Byram River in Fairfield County, Connecticut. It was built in 1955 and reconstructed in 2018, so it is 70 years old, older than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 675 vehicles a day, roughly 4% of them trucks, projected to reach 1,003 by 2043. The structure is 59 ft (18.1 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesBailiwick Road
CrossesByram River
LocationRiversville & Bailiwick
RouteCity Street 0
Coordinates41.04632, -73.66266
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
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 above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating52.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length59 ft (18.1 m)
Longest span53 ft (16.2 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic675 (2023)
Projected traffic1,003 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Bailiwick Road over Byram River built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2018.

What condition is Bailiwick Road over Byram River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Bailiwick Road over Byram River carry?

About 675 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Bailiwick Road over Byram River?

The structure is 59 ft (18.1 m) long with a longest span of 53 ft (16.2 m) and a deck 28 ft wide.

Who owns Bailiwick Road over Byram River?

It is owned by the Town or Township Highway Agency.