US Bridges

Engle Road T-301 over Conewago Creek

Fair

Dauphin County, Pennsylvania · 1.4 Tmi/Conewago CR#1 · Structure no. 000000000014672

Built
1985
40 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
200
2021 count
Owner
County
County Highway Agency

About this bridge

Engle Road T-301 over Conewago Creek is a prestressed concrete box beam or girders - multiple carrying Engle Road T-301 over Conewago Creek in Dauphin County, Pennsylvania. It was built in 1985, so it is 40 years old, younger 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 200 vehicles a day, projected to reach 280 by 2041. The structure is 77 ft (23.5 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesEngle Road T-301
CrossesConewago Creek
Location1.4 Tmi/Conewago CR#1
RouteCity Street 0
CountyDauphin County
StatePennsylvania
Coordinates40.14704, -76.69886
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
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 inspectionJune 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating50 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length77 ft (23.5 m)
Longest span75 ft (22.9 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2021)
Projected traffic280 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Engle Road T-301 over Conewago Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Engle Road T-301 over Conewago Creek 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 June 2023.

How much traffic does Engle Road T-301 over Conewago Creek carry?

About 200 vehicles per day (2021 count).

How long is Engle Road T-301 over Conewago Creek?

The structure is 77 ft (23.5 m) long with a longest span of 75 ft (22.9 m) and a deck 32 ft wide.

Who owns Engle Road T-301 over Conewago Creek?

It is owned by the County Highway Agency.