US Bridges

Service Road over Council Bluff Lake

PoorPosted for load

Iron County, Missouri · Council Bluff Lake Intake · Structure no. 090505000003034

Built
1978
47 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
266 ft
3 main spans
Daily traffic
5
Owner
Federal
U.S. Forest Service

About this bridge

Service Road over Council Bluff Lake is a steel stringer/multi-beam or girder carrying Service Road over Council Bluff Lake in Iron County, Missouri. It was built in 1978, so it is 47 years old, older than the Missouri average of 45.1 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 5 vehicles a day, projected to reach 7 by 2045. The structure is 266 ft (81.2 m) long and 12 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

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CarriesService Road
CrossesCouncil Bluff Lake
LocationCouncil Bluff Lake Intake
RouteFederal Lands Road 2492
CountyIron County
StateMissouri
Coordinates37.72983, -90.90825
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans3
Design loadHL 93
Structure length266 ft (81.2 m)
Longest span98 ft (29.9 m)
Deck width12 ft (3.6 m)
Roadway width10 ft (3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (—)
Projected traffic7 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Service Road over Council Bluff Lake built?

It was built in 1978, making it 47 years old in 2025.

What condition is Service Road over Council Bluff Lake 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 December 2024.

How much traffic does Service Road over Council Bluff Lake carry?

About 5 vehicles per day (latest count).

How long is Service Road over Council Bluff Lake?

The structure is 266 ft (81.2 m) long with a longest span of 98 ft (29.9 m) and a deck 12 ft wide.

Who owns Service Road over Council Bluff Lake?

It is owned by the U.S. Forest Service.