US Bridges

RTE 13 over Sixmile Creek

Good

Tompkins County, New York · .1 MI S JCT SH 13 & SH 79 · Structure no. 000000001010350

Built
1965
60 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
117 ft
2 main spans
Daily traffic
21,382
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 13 over Sixmile Creek is a steel stringer/multi-beam or girder carrying RTE 13 over Sixmile Creek in Tompkins County, New York. It was built in 1965, so it is 60 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 21,382 vehicles a day, roughly 5% of them trucks, projected to reach 21,482 by 2041. The structure is 117 ft (35.7 m) long and 75 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 13
CrossesSixmile Creek
Location.1 MI S JCT SH 13 & SH 79
RouteState Highway 13
Coordinates42.43589, -76.50817
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating43 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length117 ft (35.7 m)
Longest span55 ft (16.7 m)
Deck width75 ft (22.9 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,382 (2020)
Projected traffic21,482 by 2041
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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$4.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 13 over Sixmile Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is RTE 13 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 July 2024.

How much traffic does RTE 13 over Sixmile Creek carry?

About 21,382 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is RTE 13 over Sixmile Creek?

The structure is 117 ft (35.7 m) long with a longest span of 55 ft (16.7 m) and a deck 75 ft wide.

Who owns RTE 13 over Sixmile Creek?

It is owned by the State Highway Agency.