US Bridges

D2018 over Little Blue River

PoorPosted for load

Bryan County, Oklahoma · 1.2 N .5 W JCT 48 & 78 · Structure no. 064740000000000

Built
1938
87 years old
Condition
Poor
inspected June 2024
Type
Truss - Thru
Steel
Length
63 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

D2018 over Little Blue River is a steel truss - thru carrying D2018 over Little Blue River in Bryan County, Oklahoma. It was built in 1938, so it is 87 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 63 ft (19.2 m) long and 18 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesD2018
CrossesLittle Blue River
Location1.2 N .5 W JCT 48 & 78
RouteCounty Highway D2018
Coordinates34.08641, -96.37901
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating38.8 US tons
Inventory rating24.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length63 ft (19.2 m)
Longest span62 ft (18.9 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$393,000
NavigationNo navigation control on waterway

Frequently asked questions

When was D2018 over Little Blue River built?

It was built in 1938, making it 87 years old in 2025.

What condition is D2018 over Little Blue River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does D2018 over Little Blue River carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is D2018 over Little Blue River?

The structure is 63 ft (19.2 m) long with a longest span of 62 ft (18.9 m) and a deck 18 ft wide.

Who owns D2018 over Little Blue River?

It is owned by the County Highway Agency.