US Bridges

US 13 Bus NB over Tonytank Pond

Fair

Wicomico County, Maryland · 0.38 Mile North of Md 513 · Structure no. 100000220005011

Built
1995
30 years old
Condition
Fair
inspected March 2024
Type
Slab
Prestressed Concrete Continuous
Length
275 ft
7 main spans
Daily traffic
11,480
2012 count
Owner
State
State Highway Agency

About this bridge

US 13 Bus NB over Tonytank Pond is a prestressed concrete continuous slab carrying US 13 Bus NB over Tonytank Pond in Wicomico County, Maryland. It was built in 1995, so it is 30 years old, younger than the Maryland average of 52.6 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 11,480 vehicles a day, roughly 13% of them trucks, projected to reach 14,924 by 2032. The structure is 275 ft (83.8 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 13 Bus NB
CrossesTonytank Pond
Location0.38 Mile North of Md 513
RouteU.S. Route 13
Coordinates38.33301, -75.61076
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.5 US tons
Inventory rating46 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans7
Design loadHS 25 or greater
Structure length275 ft (83.8 m)
Longest span40 ft (12.2 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,480 (2012)
Projected traffic14,924 by 2032
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 13 Bus NB over Tonytank Pond built?

It was built in 1995, making it 30 years old in 2025.

What condition is US 13 Bus NB over Tonytank Pond 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 March 2024.

How much traffic does US 13 Bus NB over Tonytank Pond carry?

About 11,480 vehicles per day (2012 count), of which roughly 13% are trucks.

How long is US 13 Bus NB over Tonytank Pond?

The structure is 275 ft (83.8 m) long with a longest span of 40 ft (12.2 m) and a deck 42 ft wide.

Who owns US 13 Bus NB over Tonytank Pond?

It is owned by the State Highway Agency.