US Bridges

County Road 146 over Taughannock Creek

PoorPosted for load

Tompkins County, New York · 1.5 MI S of Trumansburg · Structure no. 000000003314460

Built
1915
110 years old, rebuilt 2005
Condition
Poor
inspected August 2024
Type
Truss - Thru
Steel
Length
59 ft
1 main span
Daily traffic
580
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 146 over Taughannock Creek is a steel truss - thru carrying County Road 146 over Taughannock Creek in Tompkins County, New York. It was built in 1915 and reconstructed in 2005, so it is 110 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 580 vehicles a day, roughly 4% of them trucks, projected to reach 812 by 2041. The structure is 59 ft (18 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 146
CrossesTaughannock Creek
Location1.5 MI S of Trumansburg
RouteCounty Highway 0
Coordinates42.521, -76.66034
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment6: Equal to present minimum criteria
Operating rating24 US tons
Inventory rating17 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans1
Design loadUnknown
Structure length59 ft (18 m)
Longest span57 ft (17.3 m)
Deck width21 ft (6.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic580 (2021)
Projected traffic812 by 2041
Trucks4%
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 statusEligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$2.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 146 over Taughannock Creek built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 2005.

What condition is County Road 146 over Taughannock Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does County Road 146 over Taughannock Creek carry?

About 580 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is County Road 146 over Taughannock Creek?

The structure is 59 ft (18 m) long with a longest span of 57 ft (17.3 m) and a deck 21 ft wide.

Who owns County Road 146 over Taughannock Creek?

It is owned by the County Highway Agency.