US Bridges

T-423 Mann Road over Logan Branch

Fair

Centre County, Pennsylvania · 30 Ft West of SR 144 · Structure no. 000000000041327

Built
2001
24 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
30
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-423 Mann Road over Logan Branch is a concrete culvert carrying T-423 Mann Road over Logan Branch in Centre County, Pennsylvania. It was built in 2001, so it is 24 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 6 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 vehicles a day, projected to reach 47 by 2043. The structure is 34 ft (10.4 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesT-423 Mann Road
CrossesLogan Branch
Location30 Ft West of SR 144
RouteCity Street 7221
CountyCentre County
StatePennsylvania
Coordinates40.88956, -77.76081
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating53 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length34 ft (10.4 m)
Longest span15 ft (4.6 m)
Deck width30 ft (9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2021)
Projected traffic47 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T-423 Mann Road over Logan Branch built?

It was built in 2001, making it 24 years old in 2025.

What condition is T-423 Mann Road over Logan Branch 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 T-423 Mann Road over Logan Branch carry?

About 30 vehicles per day (2021 count).

How long is T-423 Mann Road over Logan Branch?

The structure is 34 ft (10.4 m) long with a longest span of 15 ft (4.6 m) and a deck 30 ft wide.

Who owns T-423 Mann Road over Logan Branch?

It is owned by the Town or Township Highway Agency.