US Bridges

SR0422 Eb&wb over Bonnie Brook

Fair

Butler County, Pennsylvania · SE of East Butler · Structure no. 000000000007963

Built
1953
72 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete
Length
81 ft
2 main spans
Daily traffic
14,221
2024 count
Owner
State
State Highway Agency

About this bridge

SR0422 Eb&wb over Bonnie Brook is a concrete tee beam carrying SR0422 Eb&wb over Bonnie Brook in Butler County, Pennsylvania. It was built in 1953, so it is 72 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 14,221 vehicles a day, roughly 15% of them trucks, projected to reach 14,348 by 2032. The structure is 81 ft (24.7 m) long and 70 ft wide.

Location

Open in Google Maps
CarriesSR0422 Eb&wb
CrossesBonnie Brook
LocationSE of East Butler
RouteU.S. Route 422
CountyButler County
StatePennsylvania
Coordinates40.86556, -79.82546
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span36 ft (11 m)
Deck width70 ft (21.2 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,221 (2024)
Projected traffic14,348 by 2032
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$431,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR0422 Eb&wb over Bonnie Brook built?

It was built in 1953, making it 72 years old in 2025.

What condition is SR0422 Eb&wb over Bonnie Brook in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does SR0422 Eb&wb over Bonnie Brook carry?

About 14,221 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is SR0422 Eb&wb over Bonnie Brook?

The structure is 81 ft (24.7 m) long with a longest span of 36 ft (11 m) and a deck 70 ft wide.

Who owns SR0422 Eb&wb over Bonnie Brook?

It is owned by the State Highway Agency.