US Bridges

Jayhawk RD over Unknown Creek

Fair

Harford County, Maryland · W of Reconnaissance ST · Structure no. DAPAMCABE6008BR

Built
2017
8 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
100
2023 count
Owner
Federal
Army

About this bridge

Jayhawk RD over Unknown Creek is a concrete culvert carrying Jayhawk RD over Unknown Creek in Harford County, Maryland. It was built in 2017, so it is 8 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 100 by 2044. The structure is 23 ft (6.9 m) long.

CarriesJayhawk RD
CrossesUnknown Creek
LocationW of Reconnaissance ST
Coordinates39.47437, -76.13834
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (6.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic100 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Jayhawk RD over Unknown Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Jayhawk RD over Unknown 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 July 2023.

How much traffic does Jayhawk RD over Unknown Creek carry?

About 100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Jayhawk RD over Unknown Creek?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3 m).

Who owns Jayhawk RD over Unknown Creek?

It is owned by the Army.