US Bridges

N3300 over Caddo Creek

Fair

Carter County, Oklahoma · 4.3N 1.W of SH199 & SH142 · Structure no. 247140000000000

Built
1997
28 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
178 ft
3 main spans
Daily traffic
325
2022 count
Owner
County
County Highway Agency

About this bridge

N3300 over Caddo Creek is a prestressed concrete stringer/multi-beam or girder carrying N3300 over Caddo Creek in Carter County, Oklahoma. It was built in 1997, so it is 28 years old, younger 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 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 325 vehicles a day, roughly 10% of them trucks, projected to reach 520 by 2042. The structure is 178 ft (54.3 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesN3300
CrossesCaddo Creek
Location4.3N 1.W of SH199 & SH142
RouteCounty Highway N3300
CountyCarter County
StateOklahoma
Coordinates34.24908, -97.12561
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating68.5 US tons
Inventory rating40.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length178 ft (54.3 m)
Longest span75 ft (22.9 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2022)
Projected traffic520 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$672,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3300 over Caddo Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is N3300 over Caddo 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 March 2023.

How much traffic does N3300 over Caddo Creek carry?

About 325 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3300 over Caddo Creek?

The structure is 178 ft (54.3 m) long with a longest span of 75 ft (22.9 m) and a deck 29 ft wide.

Who owns N3300 over Caddo Creek?

It is owned by the County Highway Agency.