US Bridges

TR 18A over Little Sandy Creek

Good

LaSalle County, Illinois · E 1st N 1330 · Structure no. 050357500000000

Built
2002
23 years old
Condition
Good
inspected June 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
10
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 18A over Little Sandy Creek is a prestressed concrete box beam or girders - multiple carrying TR 18A over Little Sandy Creek in LaSalle County, Illinois. It was built in 2002, so it is 23 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, projected to reach 10 by 2046. The structure is 59 ft (18 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTR 18A
CrossesLittle Sandy Creek
LocationE 1st N 1330
RouteCounty Highway 0
Coordinates41.12347, -89.14333
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length59 ft (18 m)
Longest span59 ft (18 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2016)
Projected traffic10 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-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 18A over Little Sandy Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is TR 18A over Little Sandy Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2022.

How much traffic does TR 18A over Little Sandy Creek carry?

About 10 vehicles per day (2016 count).

How long is TR 18A over Little Sandy Creek?

The structure is 59 ft (18 m) long with a longest span of 59 ft (18 m) and a deck 24 ft wide.

Who owns TR 18A over Little Sandy Creek?

It is owned by the Town or Township Highway Agency.