US Bridges

T-421 Sugar Lk.Rd. over Over Sugar Lake Trib.

Good

Crawford County, Pennsylvania · North End of Sugar Lake · Structure no. 000000000013507

Built
1920
105 years old, rebuilt 2019
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
250
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-421 Sugar Lk.Rd. over Over Sugar Lake Trib. is a steel stringer/multi-beam or girder carrying T-421 Sugar Lk.Rd. over Over Sugar Lake Trib. in Crawford County, Pennsylvania. It was built in 1920 and reconstructed in 2019, so it is 105 years old, older than the Pennsylvania average of 54.8 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 250 vehicles a day, roughly 1% of them trucks, projected to reach 350 by 2044. The structure is 25 ft (7.6 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesT-421 Sugar Lk.Rd.
CrossesOver Sugar Lake Trib.
LocationNorth End of Sugar Lake
RouteCity Street 7231
CountyCrawford County
StatePennsylvania
Coordinates41.57358, -79.9502
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating107 US tons
Inventory rating64 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2024)
Projected traffic350 by 2044
Trucks1%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-421 Sugar Lk.Rd. over Over Sugar Lake Trib. built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 2019.

What condition is T-421 Sugar Lk.Rd. over Over Sugar Lake Trib. 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 April 2024.

How much traffic does T-421 Sugar Lk.Rd. over Over Sugar Lake Trib. carry?

About 250 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is T-421 Sugar Lk.Rd. over Over Sugar Lake Trib.?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 23 ft wide.

Who owns T-421 Sugar Lk.Rd. over Over Sugar Lake Trib.?

It is owned by the Town or Township Highway Agency.