US Bridges

Route 30 By-Pass over Old Mill RD (T358) Buck

Fair

Chester County, Pennsylvania · N.Of Coatesville 27G05 · Structure no. 000000000009961

Built
1961
64 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
145 ft
3 main spans
Daily traffic
30,490
2024 count
Owner
State
State Highway Agency

About this bridge

Route 30 By-Pass over Old Mill RD (T358) Buck is a prestressed concrete stringer/multi-beam or girder carrying Route 30 By-Pass over Old Mill RD (T358) Buck in Chester County, Pennsylvania. It was built in 1961, so it is 64 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 30,490 vehicles a day, roughly 9% of them trucks, projected to reach 36,132 by 2032. The structure is 145 ft (44.2 m) long and 88 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesRoute 30 By-Pass
CrossesOld Mill RD (T358) Buck
LocationN.Of Coatesville 27G05
RouteU.S. Route 30
Coordinates39.98441, -75.91079
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating74 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span62 ft (18.9 m)
Deck width88 ft (26.7 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,490 (2024)
Projected traffic36,132 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed14.9 mi (24 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 30 By-Pass over Old Mill RD (T358) Buck built?

It was built in 1961, making it 64 years old in 2025.

What condition is Route 30 By-Pass over Old Mill RD (T358) Buck 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 August 2024.

How much traffic does Route 30 By-Pass over Old Mill RD (T358) Buck carry?

About 30,490 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Route 30 By-Pass over Old Mill RD (T358) Buck?

The structure is 145 ft (44.2 m) long with a longest span of 62 ft (18.9 m) and a deck 88 ft wide.

Who owns Route 30 By-Pass over Old Mill RD (T358) Buck?

It is owned by the State Highway Agency.