US Bridges

Thomas Run Road over Thomas Run

Good

Harford County, Maryland · 0.1 Miles E of Kalmia RD · Structure no. 200000H-0034010

Built
2008
17 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
1,083
2019 count
Owner
County
County Highway Agency

About this bridge

Thomas Run Road over Thomas Run is a prestressed concrete box beam or girders - multiple carrying Thomas Run Road over Thomas Run in Harford County, Maryland. It was built in 2008, so it is 17 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 1,083 vehicles a day, roughly 5% of them trucks, projected to reach 1,321 by 2039. The structure is 59 ft (18 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesThomas Run Road
CrossesThomas Run
Location0.1 Miles E of Kalmia RD
RouteCounty Highway 197
CountyHarford County
StateMaryland
Coordinates39.59331, -76.28653
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length59 ft (18 m)
Longest span55 ft (16.8 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,083 (2019)
Projected traffic1,321 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Thomas Run Road over Thomas Run built?

It was built in 2008, making it 17 years old in 2025.

What condition is Thomas Run Road over Thomas 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 Thomas Run Road over Thomas Run carry?

About 1,083 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Thomas Run Road over Thomas Run?

The structure is 59 ft (18 m) long with a longest span of 55 ft (16.8 m) and a deck 29 ft wide.

Who owns Thomas Run Road over Thomas Run?

It is owned by the County Highway Agency.