US Bridges

RTE 305 over Michael Creek

Good

Allegany County, New York · 2.5 MI NE of Black Creek · Structure no. 000000001045530

Built
1990
35 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
1,341
2018 count
Owner
State
State Highway Agency

About this bridge

RTE 305 over Michael Creek is a concrete culvert carrying RTE 305 over Michael Creek in Allegany County, New York. It was built in 1990, so it is 35 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 1,341 vehicles a day, roughly 8% of them trucks, projected to reach 1,398 by 2041. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 5.6 mi (9 km).

CarriesRTE 305
CrossesMichael Creek
Location2.5 MI NE of Black Creek
RouteState Highway 305
Coordinates42.30035, -78.18791
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating48 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,341 (2018)
Projected traffic1,398 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

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$691,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 305 over Michael Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is RTE 305 over Michael 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 August 2023.

How much traffic does RTE 305 over Michael Creek carry?

About 1,341 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is RTE 305 over Michael Creek?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m).

Who owns RTE 305 over Michael Creek?

It is owned by the State Highway Agency.