US Bridges

RTE I88 over Mill Race

Good

Otsego County, New York · In City of Oneonta · Structure no. 000000001095220

Built
1973
52 years old
Condition
Good
inspected October 2023
Type
Culvert
Steel
Length
48 ft
2 main spans
Daily traffic
13,805
2019 count
Owner
State
State Highway Agency

About this bridge

RTE I88 over Mill Race is a steel culvert carrying RTE I88 over Mill Race in Otsego County, New York. It was built in 1973, so it is 52 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,805 vehicles a day, roughly 19% of them trucks, projected to reach 18,159 by 2041. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRTE I88
CrossesMill Race
LocationIn City of Oneonta
RouteInterstate 88
Coordinates42.44691, -75.06243
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span16 ft (4.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,805 (2019)
Projected traffic18,159 by 2041
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I88 over Mill Race built?

It was built in 1973, making it 52 years old in 2025.

What condition is RTE I88 over Mill Race in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does RTE I88 over Mill Race carry?

About 13,805 vehicles per day (2019 count), of which roughly 19% are trucks.

How long is RTE I88 over Mill Race?

The structure is 48 ft (14.6 m) long with a longest span of 16 ft (4.8 m).

Who owns RTE I88 over Mill Race?

It is owned by the State Highway Agency.