US Bridges

FM 1637 over Bosque River

Fair

McLennan County, Texas · 0.60 MI SE of FM 3051 · Structure no. 091610083303049

Built
2002
23 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
367 ft
4 main spans
Daily traffic
11,089
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1637 over Bosque River is a prestressed concrete stringer/multi-beam or girder carrying FM 1637 over Bosque River in McLennan County, Texas. It was built in 2002, so it is 23 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 5 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 11,089 vehicles a day, roughly 12% of them trucks, projected to reach 14,240 by 2037. The structure is 367 ft (111.9 m) long and 74 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFM 1637
CrossesBosque River
Location0.60 MI SE of FM 3051
RouteState Highway 1637
CountyMcLennan County
StateTexas
Coordinates31.60101, -97.19378
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: 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 length367 ft (111.9 m)
Longest span92 ft (28 m)
Deck width74 ft (22.6 m)
Roadway width65 ft (19.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,089 (2020)
Projected traffic14,240 by 2037
Trucks12%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1637 over Bosque River built?

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

What condition is FM 1637 over Bosque River 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 2023.

How much traffic does FM 1637 over Bosque River carry?

About 11,089 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is FM 1637 over Bosque River?

The structure is 367 ft (111.9 m) long with a longest span of 92 ft (28 m) and a deck 74 ft wide.

Who owns FM 1637 over Bosque River?

It is owned by the State Highway Agency.