US Bridges

Ponus Ridge Road over Route 15

Fair

Fairfield County, Connecticut · 1.0 MI S of Route 106 · Structure no. 00708

Built
1937
88 years old
Condition
Fair
inspected November 2023
Type
Frame
Concrete
Length
65 ft
1 main span
Daily traffic
2,500
2020 count
Owner
State
State Highway Agency

About this bridge

Ponus Ridge Road over Route 15 is a concrete frame carrying Ponus Ridge Road over Route 15 in Fairfield County, Connecticut. It was built in 1937, so it is 88 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 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 2,500 vehicles a day, roughly 3% of them trucks, projected to reach 3,715 by 2040. The structure is 65 ft (19.8 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPonus Ridge Road
CrossesRoute 15
Location1.0 MI S of Route 106
RouteCity Street 0
CountyFairfield County
StateConnecticut
Coordinates41.11899, -73.51755
Functional classUrban Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.2 US tons
Inventory rating52.5 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length65 ft (19.8 m)
Longest span65 ft (19.8 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2020)
Projected traffic3,715 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ponus Ridge Road over Route 15 built?

It was built in 1937, making it 88 years old in 2025.

What condition is Ponus Ridge Road over Route 15 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 November 2023.

How much traffic does Ponus Ridge Road over Route 15 carry?

About 2,500 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Ponus Ridge Road over Route 15?

The structure is 65 ft (19.8 m) long with a longest span of 65 ft (19.8 m) and a deck 35 ft wide.

Who owns Ponus Ridge Road over Route 15?

It is owned by the State Highway Agency.