US Bridges

Big Tree Road over Hemlock Outlet

Fair

Livingston County, New York · 1 M NE of Hemlock · Structure no. 000000003316390

Built
1996
29 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
83 ft
1 main span
Daily traffic
813
2021 count
Owner
County
County Highway Agency

About this bridge

Big Tree Road over Hemlock Outlet is a wood or timber stringer/multi-beam or girder carrying Big Tree Road over Hemlock Outlet in Livingston County, New York. It was built in 1996, so it is 29 years old, younger 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 813 vehicles a day, roughly 5% of them trucks, projected to reach 1,138 by 2041. The structure is 83 ft (25.3 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesBig Tree Road
CrossesHemlock Outlet
Location1 M NE of Hemlock
CountyLivingston County
StateNew York
Coordinates42.80329, -77.59645
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length83 ft (25.3 m)
Longest span78 ft (23.7 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic813 (2021)
Projected traffic1,138 by 2041
Trucks5%
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

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$992,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Big Tree Road over Hemlock Outlet built?

It was built in 1996, making it 29 years old in 2025.

What condition is Big Tree Road over Hemlock Outlet 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 May 2023.

How much traffic does Big Tree Road over Hemlock Outlet carry?

About 813 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Big Tree Road over Hemlock Outlet?

The structure is 83 ft (25.3 m) long with a longest span of 78 ft (23.7 m) and a deck 25 ft wide.

Who owns Big Tree Road over Hemlock Outlet?

It is owned by the County Highway Agency.