US Bridges

Marsh Hill Road over Metro-North Railroad

Fair

New Haven County, Connecticut · 0.4 MI S of I-95 · Structure no. 03643

Built
1893
132 years old, rebuilt 1975
Condition
Fair
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
18,900
2021 count
Owner
Unknown
Unknown

About this bridge

Marsh Hill Road over Metro-North Railroad is a prestressed concrete box beam or girders - multiple carrying Marsh Hill Road over Metro-North Railroad in New Haven County, Connecticut. It was built in 1893 and reconstructed in 1975, so it is 132 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 18,900 vehicles a day, roughly 6% of them trucks, projected to reach 28,084 by 2041. The structure is 81 ft (24.7 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMarsh Hill Road
CrossesMetro-North Railroad
Location0.4 MI S of I-95
RouteCity Street 0
CountyNew Haven County
StateConnecticut
Coordinates41.24626, -72.99868
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span75 ft (22.9 m)
Deck width39 ft (11.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,900 (2021)
Projected traffic28,084 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 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 Marsh Hill Road over Metro-North Railroad built?

It was built in 1893, making it 132 years old in 2025. It was reconstructed in 1975.

What condition is Marsh Hill 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 February 2023.

How much traffic does Marsh Hill Road over Metro-North Railroad carry?

About 18,900 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Marsh Hill Road over Metro-North Railroad?

The structure is 81 ft (24.7 m) long with a longest span of 75 ft (22.9 m) and a deck 39 ft wide.

Who owns Marsh Hill Road over Metro-North Railroad?

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