US Bridges

Ensor Road over Third Mine Branch

Good

Baltimore County, Maryland · 1.85 Miles SW of Md 439 · Structure no. 200000B-0158010

Built
2016
9 years old
Condition
Good
inspected December 2024
Type
Slab
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
250
2024 count
Owner
County
County Highway Agency

About this bridge

Ensor Road over Third Mine Branch is a prestressed concrete slab carrying Ensor Road over Third Mine Branch in Baltimore County, Maryland. It was built in 2016, so it is 9 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 250 vehicles a day, roughly 27% of them trucks, projected to reach 278 by 2044. The structure is 35 ft (10.7 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEnsor Road
CrossesThird Mine Branch
Location1.85 Miles SW of Md 439
RouteCounty Highway 101
Coordinates39.6575, -76.62315
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2024)
Projected traffic278 by 2044
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Ensor Road over Third Mine Branch built?

It was built in 2016, making it 9 years old in 2025.

What condition is Ensor Road over Third Mine Branch 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 December 2024.

How much traffic does Ensor Road over Third Mine Branch carry?

About 250 vehicles per day (2024 count), of which roughly 27% are trucks.

How long is Ensor Road over Third Mine Branch?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 25 ft wide.

Who owns Ensor Road over Third Mine Branch?

It is owned by the County Highway Agency.