US Bridges

Calla Rd. over Mill Creek

Fair

Mahoning County, Ohio · 0.1MI.W of S.R.534 · Structure no. 5044278

Built
1981
44 years old, rebuilt 2006
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
209
2015 count
Owner
County
County Highway Agency

About this bridge

Calla Rd. over Mill Creek is a prestressed concrete box beam or girders - multiple carrying Calla Rd. over Mill Creek in Mahoning County, Ohio. It was built in 1981 and reconstructed in 2006, so it is 44 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 209 vehicles a day, roughly 7% of them trucks, projected to reach 290 by 2035. The structure is 35 ft (10.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCalla Rd.
CrossesMill Creek
Location0.1MI.W of S.R.534
RouteCounty Highway 30
StateOhio
Coordinates40.97406, -80.95432
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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.6 US tons
Inventory rating58.2 US tons

Structure

MaterialPrestressed Concrete
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span34 ft (10.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic209 (2015)
Projected traffic290 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Calla Rd. over Mill Creek built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2006.

What condition is Calla Rd. over Mill 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 2024.

How much traffic does Calla Rd. over Mill Creek carry?

About 209 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Calla Rd. over Mill Creek?

The structure is 35 ft (10.7 m) long with a longest span of 34 ft (10.4 m) and a deck 28 ft wide.

Who owns Calla Rd. over Mill Creek?

It is owned by the County Highway Agency.