US Bridges

RTE 921C over Harbor Lock Road Erie B

Fair

Oneida County, New York · .1 MI S JCT Exit 31 - I9 · Structure no. 000000004051720

Built
1968
57 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
318 ft
3 main spans
Daily traffic
23,090
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 921C over Harbor Lock Road Erie B is a steel stringer/multi-beam or girder carrying RTE 921C over Harbor Lock Road Erie B in Oneida County, New York. It was built in 1968, so it is 57 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 23,090 vehicles a day, roughly 8% of them trucks, projected to reach 23,198 by 2041. The structure is 318 ft (96.9 m) long and 66 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRTE 921C
CrossesHarbor Lock Road Erie B
Location.1 MI S JCT Exit 31 - I9
RouteState Highway 921C
Coordinates43.11204, -75.21611
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.1 US tons
Inventory rating63.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length318 ft (96.9 m)
Longest span123 ft (37.4 m)
Deck width66 ft (20.2 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,090 (2020)
Projected traffic23,198 by 2041
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5.8 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was RTE 921C over Harbor Lock Road Erie B built?

It was built in 1968, making it 57 years old in 2025.

What condition is RTE 921C over Harbor Lock Road Erie B 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 September 2024.

How much traffic does RTE 921C over Harbor Lock Road Erie B carry?

About 23,090 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is RTE 921C over Harbor Lock Road Erie B?

The structure is 318 ft (96.9 m) long with a longest span of 123 ft (37.4 m) and a deck 66 ft wide.

Who owns RTE 921C over Harbor Lock Road Erie B?

It is owned by the State Highway Agency.