US Bridges

Ivan Lake RD over Ivan Lake

Fair

Bossier Parish, Louisiana · 0.7 MI N of HWY 160 · Structure no. 040832499932981

Built
1989
36 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
256 ft
17 main spans
Daily traffic
140
2020 count
Owner
County
County Highway Agency

About this bridge

Ivan Lake RD over Ivan Lake is a wood or timber stringer/multi-beam or girder carrying Ivan Lake RD over Ivan Lake in Bossier Parish, Louisiana. It was built in 1989, so it is 36 years old, younger than the Louisiana average of 43 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.

It carries about 140 vehicles a day, projected to reach 154 by 2040. The structure is 256 ft (78 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIvan Lake RD
CrossesIvan Lake
Location0.7 MI N of HWY 160
RouteCounty Highway 0
CountyBossier Parish
StateLouisiana
Coordinates32.83148, -93.49507
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating32 US tons
Inventory rating23 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans17
Design loadH 20
Structure length256 ft (78 m)
Longest span15 ft (4.6 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2020)
Projected traffic154 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ivan Lake RD over Ivan Lake built?

It was built in 1989, making it 36 years old in 2025.

What condition is Ivan Lake RD over Ivan Lake 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 December 2024.

How much traffic does Ivan Lake RD over Ivan Lake carry?

About 140 vehicles per day (2020 count).

How long is Ivan Lake RD over Ivan Lake?

The structure is 256 ft (78 m) long with a longest span of 15 ft (4.6 m) and a deck 26 ft wide.

Who owns Ivan Lake RD over Ivan Lake?

It is owned by the County Highway Agency.