US Bridges

Md 446 over Mill Pond Creek

Fair

Kent County, Maryland · 0.80 Mile South of Md 20 · Structure no. 100000140021010

Built
1929
96 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
610
2009 count
Owner
State
State Highway Agency

About this bridge

Md 446 over Mill Pond Creek is a concrete slab carrying Md 446 over Mill Pond Creek in Kent County, Maryland. It was built in 1929, so it is 96 years old, older 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 5 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 610 vehicles a day, roughly 8% of them trucks, projected to reach 1,176 by 2026. The structure is 23 ft (7 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesMd 446
CrossesMill Pond Creek
Location0.80 Mile South of Md 20
RouteState Highway 446
CountyKent County
StateMaryland
Coordinates39.20526, -76.12208
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2009)
Projected traffic1,176 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$41,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 446 over Mill Pond Creek built?

It was built in 1929, making it 96 years old in 2025.

What condition is Md 446 over Mill Pond 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 May 2024.

How much traffic does Md 446 over Mill Pond Creek carry?

About 610 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 446 over Mill Pond Creek?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Md 446 over Mill Pond Creek?

It is owned by the State Highway Agency.