US Bridges

Route 15 over Taconic Road

Fair

Fairfield County, Connecticut · 6.3 MI E of State Line · Structure no. 00698

Built
1936
89 years old
Condition
Fair
inspected June 2024
Type
Arch - Deck
Concrete
Length
63 ft
1 main span
Daily traffic
62,900
2022 count
Owner
State
State Highway Agency

About this bridge

Route 15 over Taconic Road is a concrete arch - deck carrying Route 15 over Taconic Road in Fairfield County, Connecticut. It was built in 1936, so it is 89 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 62,900 vehicles a day, roughly 1% of them trucks, projected to reach 93,463 by 2042. The structure is 63 ft (19.1 m) long and 66 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRoute 15
CrossesTaconic Road
Location6.3 MI E of State Line
RouteState Highway 15
Coordinates41.08997, -73.62238
Functional classRural Principal Arterial - Other

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.8 US tons
Inventory rating53.2 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length63 ft (19.1 m)
Longest span56 ft (17.1 m)
Deck width66 ft (20.1 m)
Roadway width57 ft (17.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,900 (2022)
Projected traffic93,463 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 Route 15 over Taconic Road built?

It was built in 1936, making it 89 years old in 2025.

What condition is Route 15 over Taconic Road 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 2024.

How much traffic does Route 15 over Taconic Road carry?

About 62,900 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Route 15 over Taconic Road?

The structure is 63 ft (19.1 m) long with a longest span of 56 ft (17.1 m) and a deck 66 ft wide.

Who owns Route 15 over Taconic Road?

It is owned by the State Highway Agency.