US Bridges

US 87 NB over CR 21

Good

Howard County, Texas · 7.2 Miles N of IH 20 · Structure no. 081150006815192

Built
2020
5 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
280 ft
3 main spans
Daily traffic
1,524
2020 count
Owner
State
State Highway Agency

About this bridge

US 87 NB over CR 21 is a prestressed concrete stringer/multi-beam or girder carrying US 87 NB over CR 21 in Howard County, Texas. It was built in 2020, so it is 5 years old, younger than the Texas average of 44.4 years.

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

It carries about 1,524 vehicles a day, roughly 28% of them trucks, projected to reach 2,134 by 2040. The structure is 280 ft (85.3 m) long and 40 ft wide.

CarriesUS 87 NB
CrossesCR 21
Location7.2 Miles N of IH 20
RouteU.S. Route 87
StateTexas
Coordinates32.28415, -101.53231
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length280 ft (85.3 m)
Longest span100 ft (30.5 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,524 (2020)
Projected traffic2,134 by 2040
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 US 87 NB over CR 21 built?

It was built in 2020, making it 5 years old in 2025.

What condition is US 87 NB over CR 21 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 April 2024.

How much traffic does US 87 NB over CR 21 carry?

About 1,524 vehicles per day (2020 count), of which roughly 28% are trucks.

How long is US 87 NB over CR 21?

The structure is 280 ft (85.3 m) long with a longest span of 100 ft (30.5 m) and a deck 40 ft wide.

Who owns US 87 NB over CR 21?

It is owned by the State Highway Agency.