US Bridges

Lock & Park Traffi over Henderson River

PoorPosted for load

Henderson County, Illinois · Lock 18 Access Road · Structure no. CEPNCRIL-000002

Built
1937
88 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
122 ft
2 main spans
Daily traffic
100
2020 count
Owner
Federal
Corps of Engineers (Civil)

About this bridge

Lock & Park Traffi over Henderson River is a steel stringer/multi-beam or girder carrying Lock & Park Traffi over Henderson River in Henderson County, Illinois. It was built in 1937, so it is 88 years old, older than the Illinois average of 45.3 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 5% of them trucks, projected to reach 100 by 2040. The structure is 122 ft (37.1 m) long and 22 ft wide.

CarriesLock & Park Traffi
CrossesHenderson River
LocationLock 18 Access Road
RouteFederal Lands Road 0
Coordinates40.87845, -91.01901
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length122 ft (37.1 m)
Longest span60 ft (18.2 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic100 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCorps of Engineers (Civil)
Maintained byCorps of Engineers (Civil)
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$358,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lock & Park Traffi over Henderson River built?

It was built in 1937, making it 88 years old in 2025.

What condition is Lock & Park Traffi over Henderson 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 July 2024.

How much traffic does Lock & Park Traffi over Henderson River carry?

About 100 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Lock & Park Traffi over Henderson River?

The structure is 122 ft (37.1 m) long with a longest span of 60 ft (18.2 m) and a deck 22 ft wide.

Who owns Lock & Park Traffi over Henderson River?

It is owned by the Corps of Engineers (Civil).