US Bridges

Ruffs Mill Road over Trib / Thomas Run

Good

Harford County, Maryland · 0.8 Miles SE of US 1 · Structure no. 200000H-0190010

Built
2011
14 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
1,007
2019 count
Owner
County
County Highway Agency

About this bridge

Ruffs Mill Road over Trib / Thomas Run is a prestressed concrete box beam or girders - single or spread carrying Ruffs Mill Road over Trib / Thomas Run in Harford County, Maryland. It was built in 2011, so it is 14 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 1,007 vehicles a day, roughly 5% of them trucks, projected to reach 1,497 by 2039. The structure is 59 ft (18 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesRuffs Mill Road
CrossesTrib / Thomas Run
Location0.8 Miles SE of US 1
RouteCounty Highway 204
Coordinates39.58, -76.31751
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 protection7 GoodSome minor problems.
Last inspectionDecember 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating72.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length59 ft (18 m)
Longest span49 ft (14.9 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,007 (2019)
Projected traffic1,497 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Ruffs Mill Road over Trib / Thomas Run built?

It was built in 2011, making it 14 years old in 2025.

What condition is Ruffs Mill Road over Trib / 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 December 2023.

How much traffic does Ruffs Mill Road over Trib / Thomas Run carry?

About 1,007 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Ruffs Mill Road over Trib / Thomas Run?

The structure is 59 ft (18 m) long with a longest span of 49 ft (14.9 m) and a deck 29 ft wide.

Who owns Ruffs Mill Road over Trib / Thomas Run?

It is owned by the County Highway Agency.