US Bridges

SH121 NB over Harwood Road

Fair

Tarrant County, Texas · 1.3 MI NE of SH 183 · Structure no. 022200036401115

Built
1986
39 years old
Condition
Fair
inspected April 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
316 ft
4 main spans
Daily traffic
51,292
2019 count
Owner
State
State Highway Agency

About this bridge

SH121 NB over Harwood Road is a prestressed concrete stringer/multi-beam or girder carrying SH121 NB over Harwood Road in Tarrant County, Texas. It was built in 1986, so it is 39 years old, younger than the Texas average of 44.4 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 51,292 vehicles a day, roughly 7% of them trucks, projected to reach 64,270 by 2033. The structure is 316 ft (96.3 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH121 NB
CrossesHarwood Road
Location1.3 MI NE of SH 183
RouteState Highway 121
CountyTarrant County
StateTexas
Coordinates32.85189, -97.11051
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length316 ft (96.3 m)
Longest span79 ft (24.1 m)
Deck width68 ft (20.8 m)
Roadway width67 ft (20.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,292 (2019)
Projected traffic64,270 by 2033
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 SH121 NB over Harwood Road built?

It was built in 1986, making it 39 years old in 2025.

What condition is SH121 NB over Harwood Road 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 April 2022.

How much traffic does SH121 NB over Harwood Road carry?

About 51,292 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is SH121 NB over Harwood Road?

The structure is 316 ft (96.3 m) long with a longest span of 79 ft (24.1 m) and a deck 68 ft wide.

Who owns SH121 NB over Harwood Road?

It is owned by the State Highway Agency.