US Bridges

Amberg Road over Mill Creek

Fair

Herkimer County, New York · 3 MI NE of Gray · Structure no. 000000002204680

Built
1920
105 years old, rebuilt 1998
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
5
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Amberg Road over Mill Creek is a prestressed concrete box beam or girders - multiple carrying Amberg Road over Mill Creek in Herkimer County, New York. It was built in 1920 and reconstructed in 1998, so it is 105 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 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 5 vehicles a day, roughly 15% of them trucks, projected to reach 7 by 2041. The structure is 26 ft (7.9 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesAmberg Road
CrossesMill Creek
Location3 MI NE of Gray
Coordinates43.28481, -74.90048
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating74 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadOther
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic5 (2021)
Projected traffic7 by 2041
Trucks15%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$243,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Amberg Road over Mill Creek built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1998.

What condition is Amberg Road over Mill Creek 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 Amberg Road over Mill Creek carry?

About 5 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Amberg Road over Mill Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 16 ft wide.

Who owns Amberg Road over Mill Creek?

It is owned by the Town or Township Highway Agency.