US Bridges

Vernon Road over First Mine Branch

Good

Baltimore County, Maryland · 0.8 MI S of White Hall RD · Structure no. 200000B-0122010

Built
1988
37 years old
Condition
Good
inspected April 2023
Type
Truss - Thru
Steel
Length
67 ft
1 main span
Daily traffic
666
2023 count
Owner
County
County Highway Agency

About this bridge

Vernon Road over First Mine Branch is a steel truss - thru carrying Vernon Road over First Mine Branch in Baltimore County, Maryland. It was built in 1988, so it is 37 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 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 666 vehicles a day, roughly 5% of them trucks, projected to reach 1,111 by 2043. The structure is 67 ft (20.4 m) long and 14 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesVernon Road
CrossesFirst Mine Branch
Location0.8 MI S of White Hall RD
RouteCounty Highway 97
CountyBaltimore County
StateMaryland
Coordinates39.62734, -76.59494
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46 US tons
Inventory rating27.4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckSteel plate
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span61 ft (18.6 m)
Deck width14 ft (4.2 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic666 (2023)
Projected traffic1,111 by 2043
Trucks5%
Lanes on structure1
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Vernon Road over First Mine Branch built?

It was built in 1988, making it 37 years old in 2025.

What condition is Vernon Road over First 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 April 2023.

How much traffic does Vernon Road over First Mine Branch carry?

About 666 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Vernon Road over First Mine Branch?

The structure is 67 ft (20.4 m) long with a longest span of 61 ft (18.6 m) and a deck 14 ft wide.

Who owns Vernon Road over First Mine Branch?

It is owned by the County Highway Agency.