US Bridges

Route 25 over Still River

Fair

Fairfield County, Connecticut · .1 MI East of US RTE 202 · Structure no. 00900

Built
1920
105 years old, rebuilt 1975
Condition
Fair
inspected March 2024
Type
Arch - Deck
Masonry
Length
45 ft
1 main span
Daily traffic
8,600
2022 count
Owner
State
State Highway Agency

About this bridge

Route 25 over Still River is a masonry arch - deck carrying Route 25 over Still River in Fairfield County, Connecticut. It was built in 1920 and reconstructed in 1975, so it is 105 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 8,600 vehicles a day, roughly 3% of them trucks, projected to reach 12,779 by 2042. The structure is 45 ft (13.7 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRoute 25
CrossesStill River
Location.1 MI East of US RTE 202
RouteState Highway 25
Coordinates41.48241, -73.40839
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span45 ft (13.7 m)
Deck width31 ft (9.4 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,600 (2022)
Projected traffic12,779 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Route 25 over Still River built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1975.

What condition is Route 25 over Still 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 March 2024.

How much traffic does Route 25 over Still River carry?

About 8,600 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Route 25 over Still River?

The structure is 45 ft (13.7 m) long with a longest span of 45 ft (13.7 m) and a deck 31 ft wide.

Who owns Route 25 over Still River?

It is owned by the State Highway Agency.