South Tollgate Roa over Plumtree Run

Good

Harford County, Maryland · 0.38 Mi. N. Plumtree Rd. · Structure no. 200000H-0233010

Built: 2019; 6 years old
Condition: Good; inspected September 2023
Type: Arch - Deck; Concrete
Length: 36 ft; 1 main span
Daily traffic: 225; 2023 count
Owner: County; County Highway Agency

About this bridge

South Tollgate Roa over Plumtree Run is a concrete arch - deck carrying South Tollgate Roa over Plumtree Run in Harford County, Maryland. It was built in 2019, so it is 6 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 225 vehicles a day, roughly 5% of them trucks, projected to reach 275 by 2043. The structure is 36 ft (11 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

No coordinates are recorded for this structure.

CarriesSouth Tollgate Roa

CrossesPlumtree Run

Location0.38 Mi. N. Plumtree Rd.

RouteCounty Highway 0

CountyHarford County

StateMaryland

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.

Component	Rating	Meaning
Superstructure	8 Very Good	No problems noted.
Substructure	8 Very Good	No problems noted.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionSeptember 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation8: Equal to present desirable criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy9: Superior to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating76.9 US tons

Inventory rating54 US tons

Structure

Structure typeArch - Deck

MaterialConcrete

DeckNot applicable

Main spans1

Design loadHS 25 or greater

Structure length36 ft (11 m)

Longest span36 ft (11 m)

Deck width50 ft (15.2 m)

Roadway width35 ft (10.7 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2023)

Projected traffic275 by 2043

Trucks5%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.9 mi (3 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 South Tollgate Roa over Plumtree Run built?

It was built in 2019, making it 6 years old in 2025.

What condition is South Tollgate Roa over Plumtree Run 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 September 2023.

How much traffic does South Tollgate Roa over Plumtree Run carry?

About 225 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is South Tollgate Roa over Plumtree Run?

The structure is 36 ft (11 m) long with a longest span of 36 ft (11 m) and a deck 50 ft wide.

Who owns South Tollgate Roa over Plumtree Run?

It is owned by the County Highway Agency.