US Bridges

Md 12 over Nassawango Creek

Fair

Worcester County, Maryland · 4.57 Miles N of Md 354 · Structure no. 100000230001010

Built
1927
98 years old, rebuilt 1954
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
2 main spans
Daily traffic
4,540
2009 count
Owner
State
State Highway Agency

About this bridge

Md 12 over Nassawango Creek is a steel stringer/multi-beam or girder carrying Md 12 over Nassawango Creek in Worcester County, Maryland. It was built in 1927 and reconstructed in 1954, so it is 98 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 4,540 vehicles a day, roughly 8% of them trucks, projected to reach 5,488 by 2026. The structure is 48 ft (14.6 m) long and 51 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMd 12
CrossesNassawango Creek
Location4.57 Miles N of Md 354
RouteState Highway 12
Coordinates38.229, -75.4714
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.5 US tons
Inventory rating30 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span22 ft (6.7 m)
Deck width51 ft (15.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,540 (2009)
Projected traffic5,488 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 12 over Nassawango Creek built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1954.

What condition is Md 12 over Nassawango 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 12 over Nassawango Creek carry?

About 4,540 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 12 over Nassawango Creek?

The structure is 48 ft (14.6 m) long with a longest span of 22 ft (6.7 m) and a deck 51 ft wide.

Who owns Md 12 over Nassawango Creek?

It is owned by the State Highway Agency.