US Bridges

Harmony Church RD over Mill Brook

Good

Harford County, Maryland · 1.4 Miles E of Md 136 · Structure no. 200000H-0028010

Built
1933
92 years old, rebuilt 2004
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
133
2021 count
Owner
County
County Highway Agency

About this bridge

Harmony Church RD over Mill Brook is a steel stringer/multi-beam or girder carrying Harmony Church RD over Mill Brook in Harford County, Maryland. It was built in 1933 and reconstructed in 2004, so it is 92 years old, older 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 133 vehicles a day, roughly 5% of them trucks, projected to reach 164 by 2041. The structure is 27 ft (8.2 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesHarmony Church RD
CrossesMill Brook
Location1.4 Miles E of Md 136
RouteCounty Highway 193
CountyHarford County
StateMaryland
Coordinates39.60483, -76.24015
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating96.5 US tons
Inventory rating58 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic133 (2021)
Projected traffic164 by 2041
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Harmony Church RD over Mill Brook built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2004.

What condition is Harmony Church RD over Mill Brook 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 August 2023.

How much traffic does Harmony Church RD over Mill Brook carry?

About 133 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Harmony Church RD over Mill Brook?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 16 ft wide.

Who owns Harmony Church RD over Mill Brook?

It is owned by the County Highway Agency.