US Bridges

Flat Iron Road over Butternut Creek

Poor

Otsego County, New York · 0.5 MI E Int Nys 51 · Structure no. 000000002227380

Built
1993
32 years old
Condition
Poor
inspected June 2024
Type
Slab
Wood or Timber
Length
114 ft
5 main spans
Daily traffic
161
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Flat Iron Road over Butternut Creek is a wood or timber slab carrying Flat Iron Road over Butternut Creek in Otsego County, New York. It was built in 1993, so it is 32 years old, younger 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.

It carries about 161 vehicles a day, roughly 14% of them trucks, projected to reach 225 by 2041. The structure is 114 ft (34.7 m) long and 15 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesFlat Iron Road
CrossesButternut Creek
Location0.5 MI E Int Nys 51
Coordinates42.42081, -75.36001
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating41 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckNot applicable
Main spans5
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span30 ft (9.1 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic161 (2021)
Projected traffic225 by 2041
Trucks14%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$727,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Flat Iron Road over Butternut Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Flat Iron Road over Butternut 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 June 2024.

How much traffic does Flat Iron Road over Butternut Creek carry?

About 161 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is Flat Iron Road over Butternut Creek?

The structure is 114 ft (34.7 m) long with a longest span of 30 ft (9.1 m) and a deck 15 ft wide.

Who owns Flat Iron Road over Butternut Creek?

It is owned by the Town or Township Highway Agency.