US Bridges

Trinity Pass Road over Rippowam River

Good

Fairfield County, Connecticut · 300W of Ponus Ridge Road · Structure no. 05853

Built
1990
35 years old
Condition
Good
inspected February 2023
Type
Slab
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
1,165
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Trinity Pass Road over Rippowam River is a prestressed concrete slab carrying Trinity Pass Road over Rippowam River in Fairfield County, Connecticut. It was built in 1990, so it is 35 years old, younger 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 1,165 vehicles a day, roughly 1% of them trucks, projected to reach 1,731 by 2043. The structure is 42 ft (12.8 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTrinity Pass Road
CrossesRippowam River
Location300W of Ponus Ridge Road
RouteCity Street 0
Coordinates41.17871, -73.55376
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating71.4 US tons
Inventory rating42.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,165 (2023)
Projected traffic1,731 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Trinity Pass Road over Rippowam River built?

It was built in 1990, making it 35 years old in 2025.

What condition is Trinity Pass Road over Rippowam 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 February 2023.

How much traffic does Trinity Pass Road over Rippowam River carry?

About 1,165 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Trinity Pass Road over Rippowam River?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns Trinity Pass Road over Rippowam River?

It is owned by the Town or Township Highway Agency.