US Bridges

Mattson Road over West Branch Chester Crk.

Fair

Delaware County, Pennsylvania · 1.5 MI N SR322 Adc D5 · Structure no. 000000000015416

Built
1930
95 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Concrete Continuous
Length
67 ft
2 main spans
Daily traffic
1,479
2024 count
Owner
County
County Highway Agency

About this bridge

Mattson Road over West Branch Chester Crk. is a concrete continuous tee beam carrying Mattson Road over West Branch Chester Crk. in Delaware County, Pennsylvania. It was built in 1930, so it is 95 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 1,479 vehicles a day, roughly 3% of them trucks, projected to reach 1,479 by 2044. The structure is 67 ft (20.4 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMattson Road
CrossesWest Branch Chester Crk.
Location1.5 MI N SR322 Adc D5
RouteCounty Highway 0
CountyDelaware County
StatePennsylvania
Coordinates39.87745, -75.46883
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length67 ft (20.4 m)
Longest span32 ft (9.8 m)
Deck width27 ft (8.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,479 (2024)
Projected traffic1,479 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$189,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mattson Road over West Branch Chester Crk. built?

It was built in 1930, making it 95 years old in 2025.

What condition is Mattson Road over West Branch Chester Crk. 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 October 2023.

How much traffic does Mattson Road over West Branch Chester Crk. carry?

About 1,479 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Mattson Road over West Branch Chester Crk.?

The structure is 67 ft (20.4 m) long with a longest span of 32 ft (9.8 m) and a deck 27 ft wide.

Who owns Mattson Road over West Branch Chester Crk.?

It is owned by the County Highway Agency.