US Bridges

Smithville Road over Lilly Creek 2

Fair

Montgomery County, Ohio · S of Springfield Street · Structure no. 5760402

Built
1984
41 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
18,495
2015 count
Owner
County
County Highway Agency

About this bridge

Smithville Road over Lilly Creek 2 is a prestressed concrete box beam or girders - multiple carrying Smithville Road over Lilly Creek 2 in Montgomery County, Ohio. It was built in 1984, so it is 41 years old, younger than the Ohio average of 47.3 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 18,495 vehicles a day, roughly 7% of them trucks, projected to reach 25,671 by 2035. The structure is 58 ft (17.7 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSmithville Road
CrossesLilly Creek 2
LocationS of Springfield Street
RouteCity Street 4975
StateOhio
Coordinates39.77717, -84.1371
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 12 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.3 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length58 ft (17.7 m)
Longest span57 ft (17.4 m)
Deck width49 ft (14.9 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,495 (2015)
Projected traffic25,671 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Smithville Road over Lilly Creek 2 built?

It was built in 1984, making it 41 years old in 2025.

What condition is Smithville Road over Lilly Creek 2 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 February 2024.

How much traffic does Smithville Road over Lilly Creek 2 carry?

About 18,495 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Smithville Road over Lilly Creek 2?

The structure is 58 ft (17.7 m) long with a longest span of 57 ft (17.4 m) and a deck 49 ft wide.

Who owns Smithville Road over Lilly Creek 2?

It is owned by the County Highway Agency.