US Bridges

3504C over Delaware Creek

FairPosted for load

Johnston County, Oklahoma · .8 S & 2.8 W of Bromide · Structure no. 110930000000000

Built
1949
76 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
111 ft
3 main spans
Daily traffic
375
2022 count
Owner
County
County Highway Agency

About this bridge

3504C over Delaware Creek is a steel stringer/multi-beam or girder carrying 3504C over Delaware Creek in Johnston County, Oklahoma. It was built in 1949, so it is 76 years old, older than the Oklahoma average of 47.8 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. Its operating status is: posted for load restriction.

It carries about 375 vehicles a day, roughly 15% of them trucks, projected to reach 600 by 2042. The structure is 111 ft (33.9 m) long and 26 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
Carries3504C
CrossesDelaware Creek
Location.8 S & 2.8 W of Bromide
RouteCounty Highway 3504C
CountyJohnston County
StateOklahoma
Coordinates34.40711, -96.5398
Functional classRural Major Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating19 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length111 ft (33.9 m)
Longest span50 ft (15.2 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2022)
Projected traffic600 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$537,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 3504C over Delaware Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is 3504C over Delaware 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 April 2023.

How much traffic does 3504C over Delaware Creek carry?

About 375 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 3504C over Delaware Creek?

The structure is 111 ft (33.9 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns 3504C over Delaware Creek?

It is owned by the County Highway Agency.