US Bridges

TR 438 a over Beaver CR

Fair

Iroquois County, Illinois · .5 MI N CH3 · Structure no. 038343500000000

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
86 ft
3 main spans
Daily traffic
25
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 438 a over Beaver CR is a concrete slab carrying TR 438 a over Beaver CR in Iroquois County, Illinois. It was built in 1975, so it is 50 years old, older than the Illinois average of 45.3 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 25 vehicles a day, projected to reach 25 by 2046. The structure is 86 ft (26.2 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR 438 a
CrossesBeaver CR
Location.5 MI N CH3
RouteCounty Highway 0
CountyIroquois County
StateIllinois
Coordinates40.95133, -87.56068
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length86 ft (26.2 m)
Longest span28 ft (8.5 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 438 a over Beaver CR built?

It was built in 1975, making it 50 years old in 2025.

What condition is TR 438 a over Beaver CR 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 August 2023.

How much traffic does TR 438 a over Beaver CR carry?

About 25 vehicles per day (2022 count).

How long is TR 438 a over Beaver CR?

The structure is 86 ft (26.2 m) long with a longest span of 28 ft (8.5 m) and a deck 26 ft wide.

Who owns TR 438 a over Beaver CR?

It is owned by the Town or Township Highway Agency.