US Bridges

Gero Road over North Branch of the Grea

Fair

Clinton County, New York · 1.4MI N Hamlet Irona · Structure no. 000000003336460

Built
1900
125 years old, rebuilt 2004
Condition
Fair
inspected April 2024
Type
Arch - Deck
Masonry
Length
109 ft
1 main span
Daily traffic
181
2020 count
Owner
County
County Highway Agency

About this bridge

Gero Road over North Branch of the Grea is a masonry arch - deck carrying Gero Road over North Branch of the Grea in Clinton County, New York. It was built in 1900 and reconstructed in 2004, so it is 125 years old, older than the New York average of 53 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 181 vehicles a day, roughly 4% of them trucks, projected to reach 253 by 2040. The structure is 109 ft (33.2 m) long and 22 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesGero Road
CrossesNorth Branch of the Grea
Location1.4MI N Hamlet Irona
Coordinates44.92398, -73.70518
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.9 US tons
Inventory rating17.1 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length109 ft (33.2 m)
Longest span51 ft (15.5 m)
Deck width22 ft (6.6 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic181 (2020)
Projected traffic253 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Gero Road over North Branch of the Grea built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2004.

What condition is Gero Road over North Branch of the Grea 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 April 2024.

How much traffic does Gero Road over North Branch of the Grea carry?

About 181 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Gero Road over North Branch of the Grea?

The structure is 109 ft (33.2 m) long with a longest span of 51 ft (15.5 m) and a deck 22 ft wide.

Who owns Gero Road over North Branch of the Grea?

It is owned by the County Highway Agency.