US Bridges

Mill Green Road over Broad Creek

Fair

Harford County, Maryland · 0.03 Miles E of Md 646 · Structure no. 200000H-0143010

Built
1988
37 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
1 main span
Daily traffic
418
2019 count
Owner
County
County Highway Agency

About this bridge

Mill Green Road over Broad Creek is a steel stringer/multi-beam or girder carrying Mill Green Road over Broad Creek in Harford 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 418 vehicles a day, roughly 5% of them trucks, projected to reach 510 by 2039. The structure is 80 ft (24.4 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMill Green Road
CrossesBroad Creek
Location0.03 Miles E of Md 646
RouteCounty Highway 145
CountyHarford County
StateMaryland
Coordinates39.66437, -76.3254
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating61.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span74 ft (22.6 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic418 (2019)
Projected traffic510 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 Mill Green Road over Broad Creek built?

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

What condition is Mill Green Road over Broad Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Mill Green Road over Broad Creek carry?

About 418 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Mill Green Road over Broad Creek?

The structure is 80 ft (24.4 m) long with a longest span of 74 ft (22.6 m) and a deck 27 ft wide.

Who owns Mill Green Road over Broad Creek?

It is owned by the County Highway Agency.