US Bridges

Giles Street over Sixmile Creek

Good

Tompkins County, New York · City of Ithaca · Structure no. 000000002210470

Built
1960
65 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
185 ft
3 main spans
Daily traffic
3,139
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Giles Street over Sixmile Creek is a steel stringer/multi-beam or girder carrying Giles Street over Sixmile Creek in Tompkins County, New York. It was built in 1960, so it is 65 years old, older 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 3,139 vehicles a day, roughly 1% of them trucks, projected to reach 3,883 by 2041. The structure is 185 ft (56.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesGiles Street
CrossesSixmile Creek
LocationCity of Ithaca
RouteCity Street 0
Coordinates42.43324, -76.48508
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 alignment6: Equal to present minimum criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length185 ft (56.4 m)
Longest span75 ft (22.9 m)
Deck width33 ft (10.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,139 (2018)
Projected traffic3,883 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Giles Street over Sixmile Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Giles Street over Sixmile Creek 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 September 2024.

How much traffic does Giles Street over Sixmile Creek carry?

About 3,139 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Giles Street over Sixmile Creek?

The structure is 185 ft (56.4 m) long with a longest span of 75 ft (22.9 m) and a deck 33 ft wide.

Who owns Giles Street over Sixmile Creek?

It is owned by the City or Municipal Highway Agency.