US Bridges

RTE 474 over L Brokenstraw Crk

Good

Chautauqua County, New York · 4.5 MI E JCT SH76 & SH474 · Structure no. 000000001029840

Built
1978
47 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
934
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 474 over L Brokenstraw Crk is a concrete continuous culvert carrying RTE 474 over L Brokenstraw Crk in Chautauqua County, New York. It was built in 1978, so it is 47 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 934 vehicles a day, roughly 12% of them trucks, projected to reach 943 by 2041. The structure is 37 ft (11.4 m) long and 47 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesRTE 474
CrossesL Brokenstraw Crk
Location4.5 MI E JCT SH76 & SH474
RouteState Highway 474
CountyChautauqua County
StateNew York
Coordinates42.07492, -79.48684
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating46 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length37 ft (11.4 m)
Longest span18 ft (5.4 m)
Deck width47 ft (14.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic934 (2020)
Projected traffic943 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed16.8 mi (27 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$859,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 474 over L Brokenstraw Crk built?

It was built in 1978, making it 47 years old in 2025.

What condition is RTE 474 over L Brokenstraw Crk 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 May 2023.

How much traffic does RTE 474 over L Brokenstraw Crk carry?

About 934 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is RTE 474 over L Brokenstraw Crk?

The structure is 37 ft (11.4 m) long with a longest span of 18 ft (5.4 m) and a deck 47 ft wide.

Who owns RTE 474 over L Brokenstraw Crk?

It is owned by the State Highway Agency.