US Bridges

I-44 SB over Ft. Sill Rd./ UP R.R Und

Fair

Comanche County, Oklahoma · 11.6 MI N of SH 36 · Structure no. 300260000000000

Built
1959
66 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
245 ft
4 main spans
Daily traffic
11,600
2022 count
Owner
State
State Highway Agency

About this bridge

I-44 SB over Ft. Sill Rd./ UP R.R Und is a steel continuous stringer/multi-beam or girder carrying I-44 SB over Ft. Sill Rd./ UP R.R Und in Comanche County, Oklahoma. It was built in 1959, so it is 66 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 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 11,600 vehicles a day, roughly 12% of them trucks, projected to reach 18,560 by 2042. The structure is 245 ft (74.7 m) long and 39 ft wide.

Location

Open in Google Maps
CarriesI-44 SB
CrossesFt. Sill Rd./ UP R.R Und
Location11.6 MI N of SH 36
RouteInterstate 44
CountyComanche County
StateOklahoma
Coordinates34.66258, -98.38178
Functional classUrban Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length245 ft (74.7 m)
Longest span76 ft (23.2 m)
Deck width39 ft (11.9 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,600 (2022)
Projected traffic18,560 by 2042
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-44 SB over Ft. Sill Rd./ UP R.R Und built?

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

What condition is I-44 SB over Ft. Sill Rd./ UP R.R Und 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 I-44 SB over Ft. Sill Rd./ UP R.R Und carry?

About 11,600 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is I-44 SB over Ft. Sill Rd./ UP R.R Und?

The structure is 245 ft (74.7 m) long with a longest span of 76 ft (23.2 m) and a deck 39 ft wide.

Who owns I-44 SB over Ft. Sill Rd./ UP R.R Und?

It is owned by the State Highway Agency.