US Bridges

Cliffdale Road over Byram River

GoodPosted for load

Fairfield County, Connecticut · .5 MI East of King ST · Structure no. 05016

Built
1925
100 years old, rebuilt 2003
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
41 ft
1 main span
Daily traffic
585
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Cliffdale Road over Byram River is a wood or timber stringer/multi-beam or girder carrying Cliffdale Road over Byram River in Fairfield County, Connecticut. It was built in 1925 and reconstructed in 2003, so it is 100 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. Its operating status is: posted for load restriction.

It carries about 585 vehicles a day, roughly 7% of them trucks, projected to reach 869 by 2043. The structure is 41 ft (12.5 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCliffdale Road
CrossesByram River
Location.5 MI East of King ST
RouteCity Street 0
Coordinates41.07875, -73.6954
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span37 ft (11.3 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic585 (2023)
Projected traffic869 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cliffdale Road over Byram River built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 2003.

What condition is Cliffdale 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 Cliffdale Road over Byram River carry?

About 585 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Cliffdale Road over Byram River?

The structure is 41 ft (12.5 m) long with a longest span of 37 ft (11.3 m) and a deck 25 ft wide.

Who owns Cliffdale Road over Byram River?

It is owned by the Town or Township Highway Agency.