US Bridges

Hollow Tree Road over Metro-North Railroad

Fair

Fairfield County, Connecticut · W. of Noroton Heights Sta · Structure no. 03847

Built
1900
125 years old, rebuilt 1992
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
3,100
2023 count
Owner
Unknown
Unknown

About this bridge

Hollow Tree Road over Metro-North Railroad is a prestressed concrete box beam or girders - multiple carrying Hollow Tree Road over Metro-North Railroad in Fairfield County, Connecticut. It was built in 1900 and reconstructed in 1992, so it is 125 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 5 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 3,100 vehicles a day, roughly 2% of them trucks, projected to reach 4,606 by 2043. The structure is 59 ft (18 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHollow Tree Road
CrossesMetro-North Railroad
LocationW. of Noroton Heights Sta
RouteCity Street 0
Coordinates41.06919, -73.49919
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.7 US tons
Inventory rating24.3 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length59 ft (18 m)
Longest span52 ft (15.9 m)
Deck width37 ft (11.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2023)
Projected traffic4,606 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerUnknown
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hollow Tree Road over Metro-North Railroad built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1992.

What condition is Hollow Tree Road over Metro-North Railroad 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 October 2024.

How much traffic does Hollow Tree Road over Metro-North Railroad carry?

About 3,100 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Hollow Tree Road over Metro-North Railroad?

The structure is 59 ft (18 m) long with a longest span of 52 ft (15.9 m) and a deck 37 ft wide.

Who owns Hollow Tree Road over Metro-North Railroad?

It is owned by the Unknown and maintained by the State Highway Agency.