US Bridges

C-121 Darlington S over Over RIC-071-0122

Fair

Richland County, Ohio · 1.22 MI N of Morrow CO · Structure no. 7003366

Built
1959
66 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
305 ft
4 main spans
Daily traffic
385
2015 count
Owner
State
State Highway Agency

About this bridge

C-121 Darlington S over Over RIC-071-0122 is a steel continuous stringer/multi-beam or girder carrying C-121 Darlington S over Over RIC-071-0122 in Richland County, Ohio. It was built in 1959, so it is 66 years old, older 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 385 vehicles a day, roughly 8% of them trucks, projected to reach 67,322 by 2035. The structure is 305 ft (93 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesC-121 Darlington S
CrossesOver RIC-071-0122
Location1.22 MI N of Morrow CO
RouteCounty Highway C0121
CountyRichland County
StateOhio
Coordinates40.57818, -82.60466
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 10
Structure length305 ft (93 m)
Longest span91 ft (27.7 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic385 (2015)
Projected traffic67,322 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was C-121 Darlington S over Over RIC-071-0122 built?

It was built in 1959, making it 66 years old in 2025.

What condition is C-121 Darlington S over Over RIC-071-0122 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 April 2024.

How much traffic does C-121 Darlington S over Over RIC-071-0122 carry?

About 385 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is C-121 Darlington S over Over RIC-071-0122?

The structure is 305 ft (93 m) long with a longest span of 91 ft (27.7 m) and a deck 31 ft wide.

Who owns C-121 Darlington S over Over RIC-071-0122?

It is owned by the State Highway Agency.