US Bridges

Monkhouse DR over I-20

Fair

Caddo Parish, Louisiana · 1.0 MI East of I-220 · Structure no. 040904510112961

Built
1965
60 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
302 ft
4 main spans
Daily traffic
28,450
2015 count
Owner
State
State Highway Agency

About this bridge

Monkhouse DR over I-20 is a steel stringer/multi-beam or girder carrying Monkhouse DR over I-20 in Caddo Parish, Louisiana. It was built in 1965, so it is 60 years old, older 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 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 28,450 vehicles a day, projected to reach 31,295 by 2035. The structure is 302 ft (92 m) long and 78 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMonkhouse DR
CrossesI-20
Location1.0 MI East of I-220
RouteCounty Highway 0
Coordinates32.46119, -93.8275
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating49.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length302 ft (92 m)
Longest span90 ft (27.4 m)
Deck width78 ft (23.9 m)
Roadway width66 ft (20.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,450 (2015)
Projected traffic31,295 by 2035
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Monkhouse DR over I-20 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Monkhouse DR over I-20 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 2024.

How much traffic does Monkhouse DR over I-20 carry?

About 28,450 vehicles per day (2015 count).

How long is Monkhouse DR over I-20?

The structure is 302 ft (92 m) long with a longest span of 90 ft (27.4 m) and a deck 78 ft wide.

Who owns Monkhouse DR over I-20?

It is owned by the State Highway Agency.