US Bridges

TR 21(1500N) over Long Point Trib

Good

De Witt County, Illinois · 3.5 Nne Wapella · Structure no. 020317700000000

Built
2002
23 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
150
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 21(1500N) over Long Point Trib is a prestressed concrete box beam or girders - multiple carrying TR 21(1500N) over Long Point Trib in De Witt 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 150 vehicles a day, roughly 3% of them trucks, projected to reach 101 by 2046. The structure is 37 ft (11.3 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 21(1500N)
CrossesLong Point Trib
Location3.5 Nne Wapella
RouteCounty Highway 0
Coordinates40.26841, -88.93631
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 protection9 ExcellentNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 length37 ft (11.3 m)
Longest span34 ft (10.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic101 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 21(1500N) over Long Point Trib built?

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

What condition is TR 21(1500N) over Long Point Trib 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 January 2024.

How much traffic does TR 21(1500N) over Long Point Trib carry?

About 150 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is TR 21(1500N) over Long Point Trib?

The structure is 37 ft (11.3 m) long with a longest span of 34 ft (10.5 m) and a deck 24 ft wide.

Who owns TR 21(1500N) over Long Point Trib?

It is owned by the Town or Township Highway Agency.